We may have a different idea of what a remake is.
Imo, remake is no remake if it is not bigger, more complex and more interesting. Bigger world, bigger cities, bigger ruins, more complex interactions, etc. etc. etc. That is why I call it a re-MAKE, and not a port or re-release.
Graphics being lifted up to today's standards is already a swag.
The reason I say "remake" instead of "remaster" is because the original game contains some jank in the physics, animation, and control scheme by modern standards. I love the exaggeration with certain things (very Might and Magic,) but traversal, certain environmental elements, and the use of that kick could be tightened up some. Doing so would require a bit more than just retextures and higher resolution.
I'd like to see something like the Kingdoms of Amalur "Re-Reckoning" -- looks and plays exactly like the original, but it introduces crisp 4K graphics and about 100 tiny changes under the hood with damage ranges, area scaling, the loot tables (making whole armor sets more reliable to attain), and bunches of other, little things that you'd probably never notice unless someone pointed them out. Playing the newest version, players will simply notice, "Hey -- that's the last piece of armor I needed for that bit! I've never found the whole thing before!" and, "Whoa -- did I just need to use a health potion to stay alive playing on
Normal!?"
I think Messiah could benefit especially from having a limitation on the use of the kick, whether a cooldown or having larger characters react less. (You have to admit, it's really easy to abuse and turn much of the game into a cake-walk, decreasing the allure of using a lot of the cool weapon combos and spells.) I'd also like to see interaction with jumping and mantling become more responsive and less finicky -- like the roof-top chase. Smarter enemies would also be a welcome addition. Add a new engine to the core of all that, and I think we're past "remastering" it.