Been out for a year need advice

Did the trading get better / improved in anyway?

Last league i played is perandus . is the current one named legacy?

what is this SSF on ladders

When is the next league starting?

how long are the current / upcomming leagues and how much time do we have between leagues?

1) Some trade improvement might come in 3.0
2) Yes, Legacy
3) SSF = solo self found (no party, no trade)

We only know about this:
https://www.pathofexile.com/oriath

February 14: The Fall of Oriath Announcement.
February 16: Legacy League/Content Update 2.6.0 full details.
March 3: Legacy League Starts.
Late April/Early May: The Fall of Oriath Beta begins.
June-July 2017: The Fall of Oriath full release.

Legacy league should last till end of the May.