The extra detail will look good on your 4K display, of course, but it'll also allow you to zoom in to appreciate the detail as your commando destroys a building.

There's still no release date for any of the remastered C&C games (which will include Red Alert), so you'll have to be patient. From early indications, though, this will be closer to the game you pictured in your head circa 1995 than an attempt to please present-day gamers with modern mechanics. This might not please people hoping for a truly new (and good) sequel, but veteran RTS players could be happy.