Well if Ky succeeds at keeping/controlling domains unless/until owners show up to contest the ruling, the other states don’t need to act, because KY will take all domains that allow visitors from KY.
If somehow a deal was made to only exclude KY players, other states could go to local or federal courts asking for a similar ruling for their state.
In general every state is going to oppose any gambling that they don’t control and more importantly tax. So unless/until the US government or the “several states” decide they want to license and tax online gaming, the status will remain as it is.
I left the US market 2 years ago when the law changed since the vast majority of my player base was at operators who left the US, it wasn’t worth it to me to restart in the US.