Why stop getting new clients but keep open to already on??, not make much sense, unless they don´t want everyone get panic. (the "oh everyone is getting here better we closed for new players because we are so overwhelmed and can´t be so big" sound kind of fishy. I mean, if was because caution to not get eyes on them because of the troubles recently, with the closed to only new players are geting more attention. If was to get attention and atract more players before May1 not sure will work, even if they tell will keep open to existing accounts the fact they will close to new players make you have some trust issues about future there.
I remember something like this happen way back (probably in the 2006), not sure if was Microgaming when doyles was there, they stop accepting new US Players but keep already open accounts to play, however that only lasted some time, then closed to all US not only new accounts, then Doyles move to cake.
Can´t say same will happen here, but surely US PLayers should be careful and not have big BR there.
For what i read this will not only happen to the Poker site, but also with the Sports beting area and casino. So kind of wird.
Time will tell.