Also: Each show will always look very much like the time period it was produced in anyway: TOS will always look like a 60s show. The TOS movies like a 70s production. TNG had a very 80s look, VOY and DS9 a 90s look, and ENT a 00's look.
And DIS, well, DIS will always look like an early 2000's series with early CGI graphics as well.
There is no reason to update the look from an older series to a "newer" one, if that one is going to be dating the series so much as well. TOS doesn't suddenly look better if we pretend it always looked like an 80s show instead of a 60s show. And DIS' version of the Enterprise looks already dated now, as if it were a pre-BSG-nu-realism attempt at adding to a sleek design by adding unnecessary greeble to it.
And DIS, well, DIS will always look like an early 2000's series with early CGI graphics as well.

There is no reason to update the look from an older series to a "newer" one, if that one is going to be dating the series so much as well. TOS doesn't suddenly look better if we pretend it always looked like an 80s show instead of a 60s show. And DIS' version of the Enterprise looks already dated now, as if it were a pre-BSG-nu-realism attempt at adding to a sleek design by adding unnecessary greeble to it.