I do not wish to sound rude, but I kind of want to throw this out there.
Really looking into it as a Metroidvania game, apparently, I suppose trying to replicate the MSX Metal Gear games is not in the plan?
The idea is to be a true metroidvania, but with stealth elements. It would be possible to create some MGS-inspired top-down sequels, but that's not the current focus for future updates. Thanks for the feedback. :)