I really hope it's at least a remaster for Fallout 3. It needs it more than New Vegas.
If it plays more like Fallout 4 then I'll buy it without a shred of doubt. Mechanically, Fallout 4 is a far, far better game than Fallout 3 or New Vegas, with way better combat and a much improved interface. I recently tried to replay Fallout 3 and just couldn't do it, it's too dated in too many ways, from the graphics to the enemy AI. I did replay NV and lost my nostalgia goggles a bit, as it didn't hold up quite as well as I'd imagined.
It would also be awesome if they added in more content, as both F3 and NV suffer in comparison to F4 in terms of things to do. So much empty space in those games, whereas the spacing in Fallout 4 is the best I've ever seen for an open world game.
Some type of settlement system, even if it's only limited to a few locations, would be wonderful. I just hope that mod porting is easy.
Eh. To each their own. Haven't played 3 in forever, but I've played plenty of 4 and a little of 76. I'm just tired of that same gameplay. the hours I put into 76 was the breaking point. Whatever Fallout they do next should be a noticeable improvement over 4's.
4 did have more content, but that was also an issue imo. I enjoyed nearly every single side quest in 3, yet I can barely remember anything meaningful I did in 4. Plus 3 and NV did have dlc which I would assume would be in a potential remaster.
But I'm also of the opinion where I'd prefer 30 to 50 hours of content that is fine tuned versus 100 - 300 hours of ok content. So I'm not the usual open-world gamer.