That's not a lot, our record is still "21873 players - 2014 Feb Sat 1st 17:00"
We have been getting around 19,8xx on weekends. Expect may to have a new high of concurrent, total in a day, month, ect. June/July might also have a boost, August should bring us new records too if the trends are consistent. Right now we are probably in a small dip as people are studying for finals and such.