since they are reverting the change to convert valor to justice, one can theoretically go with 3k valor into 5.2.
But I don't think that this will be useful, except for one situation: it would be possible to reach friendly within the first week.
you get a neck at neutral, and bracers, trinket and finger at friendly.
neck = 1250, finger = 1250, bracers = 1250, trinket = 1750.
all together 5500 valor points. I think neutral is possible quire instantly when 5.2 hits...
so let's say, you instantly buy the neck (=> 1750), you don't hit friendly the first week and get an additional 1k, so you have 2750 to spent
so now it depends on when you hit friendly - if you hit it quite early (beginning of week 2), you have no problems to spend those VP, and honored also comes quite fast, then you have more items to buy than you can earn VP.
but if you hit friendly towards the end of Week 2 (or even at the beginning of Week 3), you may waste VP in Week two, and you would be better off with buying some stuff from 5.0/.1 factions and go with less than 3k into 5.2.
so, is there any data on how fast the rep will go with the shadopan assault?