Upgrade from a 760?

I have a 2560x1080 monitor and I'm looking to upgrade to Team Red, especially given that I have a FreeSync monitor (LG 34UM67 - or something like that). I'm just sick of NVidia's anti-consumer and anti-competitive antics, otherwise I would be enjoying adaptive-sync now without the need to upgrade. Without it, GTA is reaming my 2GB 760. Anywho, before I rant about how NV won't support FreeSync but is already using eDP standards for Mobile G-Sync and how utter BS that is, I was really hoping for a Tonga XT card (or R9 380X) but it doesn't seem like AMD is going to target that segment unless NVidia releases some sort of "960-Ti"

So, the question is: R9 380, or R9 290/390? I think I'm going to need a minimum of 4GB GPU memory. Or wait a bit longer and hope AMD releases a R9 380X? I also feel a compulsive need to have something newer than GCN 1.1, so someone please slap me with some reasoning.

If you must know for games, the most demanding I play is GTA V, but also have Tomb Raider, Far Cry 3, Skyrim (modded to Oblivion, excuse the pun),and I am very interested in Fallout 4 as well as Killing Floor 2. I'm very into open-world games, mods, and RPGs that are not jRPGs (ie Fallout 3, Jade Empire, KoTOR, Mass Effect, Dragon Age Origins, etc). I have a little bit of everything with my Steam Library over 80 games, and a respectable library over at GoG. Lately I've been playing some older games, such as Deus Ex Invisible War (terrible consolitis, but works ultra-wide, and has nice texture pack) so the upgrade isn't urgent, but would like to upgrade while my monitor is still shiny. Again, someone slap me with some reasoning.

I'm currently running a 4GB 760 because I planned to SLI two of them... Before they went out of stock everywhere. So I'm in a similar situation where my 760 is fine for 1080p but in a year games will start eating the 760 and if I get a 1440p monitor during black Friday? Hahaha no

My plan is to go with a 970. I don't care for the team AMD vs NVIDIA BS because the GTX series has and still does suit my needs perfectly. But I understand why you want to avoid supporting NVIDIA and if that's the case, I'd say wait for the new 300 series card. I could be wrong, but last i heard there will be a new release. As for the cards available right now, I'm afraid I don't have expert knowledge but I see the 380 suggested a lot.

just get a 390 and be a happy camper for the next 2-3 years.

TLDR properly sorry :(

got cash breh ? buy a r9 fury x :P, anyways my suggestion would be if u can wait for a little longer for r9 Fury or R9 Nano maybe, the reason im not recommending r9 300 series is they are still 1.1 gcn(exception being 380) unless u dont give a crap about those kinds of stuff that is apart from that if you are going to buy a 300 series gpu go for r9 290/390, i mean come on..... the value is over like 9000 man!