@Horus tried all he could to explain this to you in that other thread but as we say here in Pakistan " Jithay de Khoti Uthay Aaan Khaloti"
The 5 billion dollar figure he quoted was for a fiscal syscle of 5 years, 10 Bil a year
anyway, he have tried his best, i have explain in this one post, will not be wasting more time on this.
ON TOPIC: this is not as such a news. We know for some time that AL Khalid fleet is being standardized to AK-1 standard and that will be it. The new battle tank will be something based on MBT-3000 and some Ak-I features for platform commonality and may well be labeled Al-Haider so this is all that was already known and no new set back. Relax
@kaonalpha