I dont think IFH would die but it would suffer. But a breach betwwent he two games woudl be cool for me anyways.
Becuase theya re stuff in IFH i find way better then TBP like: Realistic flight model (i just fell in love with it) Size of jump gates and jump point realism, (i foudn in PTB the jump gate much to big and the jump points dont destroy whats in its area of effect plus their almost flat, plus the ship just passes trought it, where in IFH their like the real thing almost. You see the flash fo the disapering ship and also the shrinking growup effect.) Stuff liek that i like a whole lot mroe in IFH. And the hud (you ee every ship in yrou feild of veiw is marked but a marker of the color red green or blue depending on their alegiance. TBP you dotn you need to ahve a lock on them, makes it quite hard to find ships at times.
In TBP i lke some stuff over IFH to like: Weapons loadout (god i love thsi feature dont have it in IFH) Full scale campgaings, a multyplayer is seems but i need to try it, I fidn the campaing stories better on this one so far. Plus we ahve an editor to make new missons and what's not. I am still learning TBP so i might have not named soem stuff i would have named if i knew the game better.
But for me if youd take booth those worlds and slam them into one I'd be super happy.