I don't remember where I read it, probably a rumor thread on this forum, that Verizon Note4 was slated for early to mid April with 5.0.1
Samsung skip to 5.1 ? Surely you jest. We'll probably NEVER see pushed 5.1 on a Note4 unless Samsung changes its ways dramatically.
Why do you say that? Samsung has pretty regularly pushed out .x updates over the past few years for flagships. It usually takes a while, but they typically see a release. This is particularly true of .x updates that address some major issues like 5.1.