I'm on Virtue and haven't really noticed any more private tells asking if I would be interested in joining whatever than I usually get. I have had a few friends say that they are receiving more private requests than usual.
I agree with Visual Fallacy, I believe also that these are people just trying to fill teams. As he said, forming something mid-week now can be a pain. I formed a Katie TF the other night that took longer to form than to do the TF. Prior to the shutdown announcement, when I would form a Katie, I had to turn people away because we would fill so quickly. We are now finding ourselves having to run TFs with the minimum required, and sometimes just getting people to fill so we can start and then do the TF with less than minimum.
Although the population on the servers has been down quite a bit, we were still able to form a full league for the blueside CoP, and got 18 for the redside CoP last night. I feel pretty sure we had players from other servers, not just Virtue players.