Britain has major involvement in TF-X. So far Pakistan has not joined this program. If and only if we decide to join it in future, Will Britain have any objection on Pakistan joining TF-X. This is a very serious matter for us.
According to British ambassador, Turkey demands two things for TF-X partnership.
-Access to all sensitive technologies
-No restrictions to usage/exportation
BAE is the one who met all requests of Turkey and formed a strong partnership which is going to proceed maybe 30-40 years. Britain and Turkey formed an alliance to develop one of the best 5th generation stealth fighter aircraft. TurAF is actively participating into meetings and It is the TurAF who announced the strong partnership between Britan and Turkey for TF-X project. Britan and Turkey has shaked hands after formalities for permissions have been solved. There won't be any restrictions, limitations or problem to export third countries.
I suppose Reality of TF-X project is visible and The Turkish officials will offer ally states like Saudi Arabia, Qatar, Pakistan, Azerbaijan or Malaysia to join into this TF-X alliance like Indonesia and S. Korea does. Funding TF-X from the beggining additions to local engineering support will be a win-win for all parties bro.
The projects related with TF-X has already been commenced by Turkish industry !
Goktuğ air to air missiles (IIR guided short range, RF guided long range)
SOM-B cruise missiles
SOM-J anti-ship cruise missiles
Almost all type guided bombs
EW/Jammer/SAR pods
TF-X AESA radar project to be finalized by 2020.
Mission computer development project for TF-X