Regarding supply of F-16 kit, Turkiye's agreement to Sweden joining NATO (after passing through Turkish parliamentary bureaucracy) may persuade the US Congress to approve. Or it may not. I read that Erdogan does not see Hamas as a terrorist body and I hear (in translation) that he sees Israel as a terrorist body (source follows)
What are the chances of US approving the F-16 deal after the brutal Hamas attack and the brutal Israeli response? Definitely worse than before October 7. Possibly much, much worse in view of the linked speech by Erdogan.
I think that Turkiye should pursue KAAN development as fast as it can with all the resources it can call on - internal and external. It may be that relations with the US deteriorate in the next few months, supply of US products is blocked and use of US intellectual property denied.