My point is, it's no more "illegal" now that it ever was. The same laws that govern UOKR govern every version of UO. Supporting UOKR is no more illegal than supporting other clients.
Even the license agreement is pretty much the same as it was before. I think the only difference was some kind of "international" provision that wasn't there before. The piece in the license agreement prohibiting the use of emulators and third party software has been in there for a long time now. And the EULA is not a law, it's a license agreement outlining terms of service for UO.
The legality of software license agreements themselves is pretty questionable. There was a significant court decision made a few years ago about a Battle.Net emulator that was deemed illegal which could have bearing on all of this. Then again, there was another case regarding a software emulator of one of the console systems several years ago where the emulator was determined to be legal. So the whole thing is pretty sticky, legality wise.
The recent case involving the Lineage emulator was ruled in NCSoft's favor because the people who wrote the emulator were using stolen NCSoft source code. So that was more of a copy infringement issue.
Most emulators (including WoW emulators) getting "shut down" are voluntarily shutting themselves down after receiving cease and desist warnings from lawyers. A cease and desist is basically just a threat from a lawyer that a company will use as a tactic to get you to do what they want without spending any money. A lot of cease and desist letters have NO legal basis at all. They are just trying to use their corporate power and legal threats to bully and intimidate you.
But my main point is, if UOKR is illegal, it's ALL illegal. There is nothing unique about UOKR.
The worst that is likely to happen to you (unless you are running a really really large server and they feel threatened by you) is that EA will send you a cease and desist warning and then you will have to make a decision to shut down or not. If you don't, you may get sued, or then again, nothing at all may happen. It depends on how much money EA wants to invest to shut down a server that probably isn't making any kind of impact on their bottom line.
But my bet on what WILL happen to you is - absolutely nothing.
P.S. What is legal and what isn't legal also varies from state to state and even country to country.
P.P.S. I love threads like this because they bring out every "shithouse lawyer" on the internet. So please, do some research before posting things saying "this is illegal" or "that is illegal". Because most of the people who make those comments have done ZERO research and don't know WTF they are talking about.