Some of the prior moves by Nexstar just defied common sense of websites. These unwieldly names buried the branding and identity of the stations, while simple and short addresses. The smart thing to do is keep the old address around for redirecting purposes, and some (now part of Nexstar) got smart, and did like WJW and adopted Fox8.com, ditching the myfoxcleveland.com instituted by Fox earlier.
Going into the mobile era, these shorter websites are much easier to type than the longer unwieldy ones.
In the breakup of Newport, Inergize was one of the divisions that became part of Nexstar and ended up taking a lot of the old websites with them. This was a problem for some of the stations that were not picked up by Nexstar but spun off to other owners like Sinclair. Stations like WHP got burned and ended up with Local21news.com, as opposed to what they had before.
As a side effect of the reallocation in Columbus, "Fox 28" still has the myfox28columbus.com while WTTE itself now has WTTE28.com, which was the original address that Sinclair started for them and basically used the same pattern for most of their stations at the time. Nice and simple.
Essentially going forward branding is going to be anything these stations have, channel numbers aren't going to matter (especially on OTT services)
Catchy and easy to remember is going to be the key, and so is a long established brand to a legacy product.