Yup, the embargo is in place, until April 1st I do believe, after which you can redeem F seats about 3 days before departure with significant availability left (the latter is my thinking, they may make it more strict than that)
Oh yeah, and no Suites, not now at least. That is 2 of 3 flights to LHR and your LAX/JFK flights (11/12/25/26)