China's space launch schedule from 2012 to 2028
I saw a Chinese Mars flight in a few years on NASA Spaceflight. I think China will use their own heavy-lift rocket.
Venus in 2015. Mars in 2016. See tentative launch schedule below.
Chinese launch schedule
China launches in 2012
01 - January 9 (0317:09.979UTC) - CZ-4B (Y26) - TSLC, LC9 - ZY-3 Ziyuan-3; VesselSat-2
02 - January 13 (0056:04.326UTC) - CZ-3A (Y22) - XSLC, LC3 - FY-2F Fengyun-2F
03 - February 24 (1612:04.289UTC) - CZ-3C (Y6) - XSLC, LC2 - Compass-G5
04 - March 31 (1027:04.438UTC) - CZ-3B/E (Y22) - XSLC, LC2 - Apstar-7
05 - April 29 (2050:03.968UTC) - CZ-3B/E (Y14) - XSLC, LC2 - Compass-M3; Compass-M4
06 - May 6 (0710:04.736UTC) - CZ-2D (Y17) - JSLC, 603 - TH-1B Tianhui-1B
07 - May 10 (0706:04.493UTC) - CZ-4B (Y12) - TSLC, LC9 - YG-14 Yaogan Weixing-14; TT-1 Tiantuo-1
08 - May 26 (1556:04.241UTC) - CZ-3B/E (Y17) - XSLC, LC2 - ZX-2A Zhongxing-2A
09 - May 29 (0731:05.187UTC) - CZ-4C (Y10) - TSLC, LC9 - YG-15 Yaogan Weixing-15
10 - June 16 (1037:24.558UTC) - CZ-2F/G (Y9) - JSLC, 921 - SZ-9 Shenzhou-9
China launch schedule
2012
July - CZ-4C (Y9) - JSLC, 603 - YG-16 Yaogan Weixing-16A/B/C
July - CZ-3C - XSLC, LC2 - TL-1C Tianlian-1C
August - CZ-3B/E (Y15?) - XSLC, LC2 - Compass-M2; Compass-M5
September 30 or first days of October - CZ-2D - JSLC, 603 - VRSS-1 (Venezuela Remote Sensing Satellite-1) 'Francisco Miranda'
October - CZ-3C - XSLC, LC2 - Compass-G6 (G2R)
November - CZ-4B - TSLC, LC9 - CBERS-3
December - CZ-2C - TSLC, LC9 - HJ-1C Huanjing-1C
December - CZ-3B/E - XSLC, LC2 - ZX-12 Zhongxing-12 (Chinasat-12)
Second half - CZ-2D - JSLC, 603 - Gokturk-2 (or 2013)
?? - CZ-2D - JSLC, 603 - SJ-9 Shijian 9A/B; FN-1 Fengniao-1A/B
?? - CZ-2C - JSLC, 603 - SJ-11 Shijian 11-05 (11-04R)
?? - CZ-4B - TSLC, LC9 - SJ-6 Shijian-6 Group 5
The following satellites will possibly be launched as piggyback payloads
?? - ?? - ?? - Beijing-2
?? - ?? - ?? - Jishu Shiyan-1 (NewTec-1)
?? - ?? - ?? - XY-1 Xinyan-1
2013
December 20 - CZ-3B/E - XSLC, LC2 - Túpac Katari 'TKSat-1' (Bolivia)
Early - CZ-4C - TSLC, LC9 - FY-3C Fengyun-3C (or December 2012)
Second quarter - CZ-3B/E - XSLC, LC2 - ZX-11 Zhongxing-11 (Chinasat-11)
Second quarter - CZ-3B/E - XSLC, LC2 - ZX-M Zhongxing-M (Chinasat-M)
Third quarter - CZ-3B/E - XSLC, LC2 - LaosSat-1
?? - CZ-7 - JSLC, 921 - TG-2 Tiangong-2
?? - CZ-2F/G - JSLC, 921 - SZ-10 Shenzhou-10 (or end 2012)
?? - CZ-2F - JSLC, 921 - SZ-11 Shenzhou-11
?? - CZ-2F - JSLC, 921 - SZ-12 Shenzhou-12
?? - CZ-2D - JSLC, 631 - Shiyan Weixing-5; Chuangxin-4
?? - CZ-2D - JSLC, 631 - civilian high-resolution remote sensing satellite
?? - CZ-3B/E - XSLC, LC2 - ZX-9A Zhongxing-9A (Chinasat-9A)
?? - CZ-3B - XSLC, LC2 - Chang'e-3 (Moon lander/rover)
?? - CZ-3B - XSLC, LC2 - Communications Satellite
?? - CZ-4B - TSLC, LC9 - HY-2B Haiyang-2B (or 2014)
?? - ?? - ?? - Pakistani remote sensing satellite (RSSS)
?? - ?? - ?? - YG-17 YaoGan Weixing-17
?? - ?? - ?? - YG-18 YaoGan Weixing-18
?? - ?? - ?? - YG-19 YaoGan Weixing-19
?? - ?? - ?? - YG-20 YaoGan Weixing-20
?? - ?? - ?? - HY-3A Haiyang-3A
?? - ?? - ?? - FAST (FAST-D and FAST-T: Formation for Atmospheric Science and Technology)
?? - CZ-6 - ?? - ??
2014
August - ?? - TSLC - CBERS-4
First quarter - CZ-3B/E - XSLC - Belarus Sat-1
Second half - CZ-3B - XSLC - Barcelona Moon Team
?? - CZ-3A - XSLC, LC3 - FY-2G Fengyun-2G
?? - CZ-3B/E - XSLC - ZX-5 Zhongxing-5 (Chinasat-5)
?? - CZ-3B/E - XSLC - TurkmenistanSat
?? - CZ-3B - XSLC - NigComSat-2
?? - CZ-3B - XSLC - Chang'e-4 (Moon lander/rover)
?? - CZ-5 - WSLC - ??
?? - CZ-7 - WSLC - ??
?? - CZ-?? - ?? - CFOSAT (China-France Oceanography SATellite)
?? - ?? - ?? - Scientific Experimental Satellite for Global Carbon Dioxide Monitoring
?? - CZ-2C(?) - ?? - CSES-1 Earthquake electromagnetism monitor satellite
?? - ?? - ?? - Hard X-ray Modulation Telescope 'HXMT'
2015
June - ?? - ?? - Venus probe
December - CZ-4B - TSLC - FY-3D Fengyun-3D (Batch 2)
?? - CZ-2C - JSLC - SJ-10 Shijian-10
?? - ?? - ?? - FY-3 Fengyun-3 RM-1
?? - ?? - ?? - Kuafu-A
?? - ?? - ?? - Kuafu-B (1)
?? - ?? - ?? - Kuafu-B (2)
?? - ?? - ?? - Dark Matter Satellite
NET - ?? - ?? - VeneSat-2
NET - CZ-3B/E - XSLC - NigComSat-3
NET - CZ-3B/E - XSLC - SupremeSAT
?? - CZ-3B/E - XSLC, LC2 - LaosSat-1
2016
January / April - ?? - ?? - Mars probe
?? - CZ-7 - JSLC - TG-3 Tiangong-3 (or 2015)
?? - CZ-3A - XSLC - FY-2H Fengyun-2H
?? - CZ-4B - TSLC, LC9 - FY-4A Fengyun-4A
?? - ?? - TSLC - CBERS-4B
?? - ?? - ?? - Quantum Science Satellite
2017
NET - ?? - TSLC - CBERS-SAR 1
?? - CZ-5 - WSLC - Chang'e-5 (Sample return)
?? - ?? - ?? - HY-3B Haiyang-3B
?? - ?? - TSLC - FY-3E Fengyun-3E (Batch 2)
?? - ?? - ?? - FY-4B Fengyun-4B
?? - ?? - ?? - Asteroid rendezvous and touchdown
2017 / 2020
?? - CZ-5 - WSLC - Chang'e-6 (Sample return)
2018
?? - ?? - TSLC - CBERS-SAR 1
?? - ?? - ?? - Deep Space Solar Observatory
2019
?? - ?? - TSLC - FY-3F Fengyun-3F (Batch 2)
?? - ?? - ?? - FY-3 Fengyun-3 RM-2
2020
September - ?? - TSLC - CBERS-6
?? - ?? - CZ-5 - Space Station Core Module
?? - ?? - CZ-5 - Space Station Laboratory
?? - ?? - ?? - FY-4C Fengyun-4C (or 2019)
NET - ?? - ?? - Recoverable Moon Probes
2021
?? - ?? - TSLC - FY-3G Fengyun-3G (Batch 2)
?? - ?? - ?? - Venus Global Sensing Probe
2022
?? - ?? - ?? - HY-3C Haiyang-3C
?? - ?? - ?? - Mars Rover
2023
?? - ?? - ?? - Polar Orbiter Solar Probe
2024
?? - ?? - ?? - Asteroid Sample Return Mission
2025
Proposed Moon Landing
?? - ?? - ?? - Jupiter Orbiter
2027
?? - ?? - ?? - FY-4E Fengyun-4E
2028
?? - ?? - ?? - Mars Sample Return
[Note: Thank you to Satori.]