Some of the source ports (and some of the reimagining) does exactly what you want:

Various DooM ports go beyond replicating "vanilla DooM" and even beyond updating graphics, to adding true 3D, etc.

VMCI and HotA go way beyond "Heroes III on modern machines"

Augustus expands on Julius until it's not just "Caesar 3" on current equipment.

There are a lot of remakes of old games. Nintendo has done this a lot, but one challenge is these old games all come with IP and copyright, so it's hard to remake a game even with the technology. You have to have ownership and a good reason to believe people will buy a slightly updated game.

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