Yes, we already got a trailer this month, with 3 reveals. I don't see having a new trailer this week, or this month, with new reveals... Unfortunately. And since SNKP is not talking at all about Playstation Arena, I have the feeling that it will be same build of Taipei GS.
I was thinking that next month SNKP will show the game in Japan and it could be a good moment to reveal some japanese iconic characters. Like Mai, Athena, Goro, Joe, Yuri, Ryo.. but to be honest, they never revealed characters according to the location where they go :/