Some don’t even need a remaster. Dungeon Master (1987) plays just as well as it did (in the recode version I played a couple of years ago), which is to say better than most games of that genre which have come after it (including Grimrock 1/2, though I think Grimrock 2 has a bit more content), and visual-design-wise, it looks like a 2020-made 1980s-aping indie game, right down to the colour choices (which are actually a lot more 1980s than most 1980s games).
I generally agree with you that I’d rather see a remake, or a very direct spiritual sequel, than a simple remaster. The trouble happens when people decide to do a remake or spiritual sequel, but deviate significantly in some odd direction, which seems to be almost a majority of the time.
The only remaster I’ve got a lot of playtime on, on Steam, I see, is the Skyrim one, which seems like it’s too recent until you remember it’s from 2011 and the remaster is from 2016 so even that is getting on and will likely be ancient by the time the next TES comes out. Maybe they can do a re-remaster. Sounds like a Bethesda thing to do.
I have to admit I am pretty excited about the alleged Mass Effect 1-3 remasters (which appear to be the prelude to a new ME game which has been in pre-production since about October 2019). I finished ME1 at least 4 times, and ME2 at least 7, and ME3, well, I never quite had the heart to replay it entirely, but I had a couple of hundred hours on the excellent multiplayer, so if they can bring that back that could be fantastic.
ME2/3 are recent enough and designed in a way such that remasters should be pretty straightforward. ME1… they’re going to need to decide whether to go for a “straight” remaster or make it match ME2/3, gameplay-wise. In fact, realistically, they need to seriously consider doing both, because if they don’t, whichever they choose, they’re going to get castigated, and a lot of people new to the series will be complaining about/stuck on ME1 because it is so bad and so old gameplay-wise. 2007? You could be forgiven, gameplay-wise, for thinking it was a fair bit older than that.
The Demon’s Souls remaster, which was briefly and falsely announced for PC can get stuffed though. Not only is it PS5 only, but it costs $70 yet €80 - yeah you read that right - it’s more expensive in the more valuable currency. They haven’t announced a UK price AFAIK but I’d hazard £70 or something. It’s also the straightest of straight remasters, as far as I can see, in that the gameplay looks identical, warts and all, and er… there are indeed some warts.