There are a lot of questions, but not a lot of answers. At this point in time, the best we can hope for is concrete news one way or another that tells us whether there even is a series revival to look forward to.
If there is, regardless of how well it turns out, there would definitely be cause for excitement. It is Metal Gear, after all, and it's a series that demands your attention. If it ever comes back, it will definitely have that in spades.