Release in February? Definitely no.
A possible release date reveal in February? VERY unlikely.
9th June as a release date because it's a historic date related to the update's name? Possible, but still unlikely:
I mean, it would make for a fun gimmick to use the dates you mentioned. But Paradox is a programming company. They will not delay a patch for X weeks just to hit a funny date, and by now it should be clear they won't be pressured into early releases (or even early reveals of potential release dates) by the community, and certainly not by some semi-arbitrary historic dates.
MAYBE, the concept of using these dates (16th Feb, 7th Jun) was in the back of someone's mind when defining this update as 'Banks', and maybe they even intended to somehow release on these dates, but I strongly doubt they would make any kind of plans to actually pinpoint developement to a specific date. IT doesn't work like that.
In my current oppinion, with no dev sources or whatever else, I would assume the release to be somewhere in the latter half of April, with the release date reveal being somewhen in March, probably a month prior.