JMS is in charge but I don’t trust it and will stick to my rule about modern TV. The original was fine but I’m sure there will be articles attacking it.
Superman and Lois was a pleasant surprise and I’d like to believe that CW is seeing the light but I’m not that naive.
Babylon 5 was pitched to CBS before DS9 was a concept, so, it is certainly possible the idea at its most basic level at least was taken from there. (And I find it likely it did happen - just an exec hearing a pitch and saying, "but wait, why a new IP when we already have one? Hire writers and tell them we are doing Star Trek on a space station!")
But the two shows are totally different aside from the space station premise. At least I think so. The few similarities they do have just seem to be basic TV or sci-fi tropes, too generic to really make a claim one way or the other.