Okay, list out what franchises you feel won't come, which you feel will come but decline, and give reasonings for each of them.
I'll be back in an hour, have to stop by the grocery store.
Edit: And where you think they will go instead of course.
I should be focusing on my essay but challenge accepted.
Final Fantasy - Already announced "something" for the PS4. Could well be a cross-gen port of FF XIII-3 but let's assume it's not. Final Fantasy XIII-2 showed a much bigger fall from FFXIII then FFX-2 showed from FFX. To me it looks like the franchise is weaker than it was at the launch of FFXIII. Next FF (after XIII-3) will probably still be on PS4 but could be cross-gen with PS3 still if the PS4 hasn't taken off by that point.
Resident Evil - Could well be on WiiU too. I beleive 6 sold less than 5 too. The series has been looking more western recently and it can't help the next game that 6's reviews weren't hugely positive. I suppose they could turn it around if 7 was a good game but I'm not holding my breath for such a thing.
One Piece - This could go anywhere frankly. It could well stay on the PS3. Isn't the next game PS3/Vita? I don't know a lot about this franchise but is it possible the anime might wane in popularity soon? I honestly have no idea. Could come to PS4 but again, could stay current gen. No real knowledge of this so someone please correct me.
MGS - Will probably hold firm in sales. The Nextbox could take a small fraction of it's sales if it does get such a port in Japan but the main issue is it could be cross gen.
Gran Turismo - Got nothing, could well be the PS4's biggest seller.
Hot Shots Golf - Again, got nothing. This will probably be fine sales-wise going into next gen.
Tales of - Could go anywhere. Could go to Nintendo, could go to last gen, could go to PS4.
Yakuza - Another game that's likely not to move in any way. Carry on.
Pro Evo Soccer - Cross gen/Multiplat game. If the PS4 DOES need saving after 6 months, this won't save it.
Dark Souls - Dark Souls 2 has been announced but I'm not sure if we know the platform? Could well be Cross-gen, could well include WiiU.
Monster Hunter - Might Never appear on a Sony console again. The best the PS4 will get is an HD port, but I'm doubtful.
Dragon's Dogma - Yeah, PS4. Probably Deep Down is it's spiritual successor.
CoD - On every console ever. Not exactly a big franchise in Japan.
Dynasty Warriors - Could well become a portable-only franchise. Tecmo-Koei isn't exactly a huge company so the dev costs of PS4 may well be a little too high for them.
Tokyo Jungle - Will we see a sequel? If we do will the novelty have worn off?
Atlus games - Could well remain on last gen consoles/portables if the dev costs are too high. We're seeing an awful lot of buddying with Nintendo too.
NIS Games - High dev costs means they could be Vita/PS3 only.
Bayonetta - Gone. Nintendo's now.
I've probably missed quite a few but this is my take on it. Not all of these bad case scenarios are going to happen, for sure, but if only a couple of them do happen then there'll likely be a knock-on effect. For example if FF releases cross gen and the PS4 sales are extremely weak initially devs are unlikely to continue supporting it, leading to even worse sales.
Edit: Top of the page again: Buy a 3DS and Kid Icarus Uprising, someday it'll get to 1 million.