Actually I didn't notice I had half my gear reforge for my resto spec, (so I ended up with 17% hit and weird reforging).

results of simC (patchwerk, 450sec+-20, with unleash lightning glyph adn 25k iterations)

Armory
bethan_t14_5.2_mastery.html << this is the sim with my current gear, EotE/EB with mastery>haste>crit reforges. I end up with haste, crit and mastery at exactly the same scale factor. switching ~2000 mastery into crit (results in 5.2_crit.html) represent a loss of 90dps (+-90...), so with EotE/EB, crit seems literally as good as mastery (with 4pt14).

Playing a bit with talents, Primal/AS seemed the best choise, and I tried it with mastery>haste>crit (pe_as_mastery) crit>haste>mastery (pe_as_crit), haste>crit>mastery (pe_as_haste_crit) and haste>mastery>crit (pe_as_haste_mastery). In each case crit have a significantly better EP than mastery, and haste vary a bit but seem still best stat, and I end up with "haste>crit>mastery" being highest dps option and still listing crit as slightly better than mastery. Losing 4pt14 to 2pt15 might change result and make mastery pull ahead of crit again.

Back to "trinket" discussion, I'd guess Hydra and Sha'ye will be bis, as I'm not sure we'll really be able to reforge out of 1k6 hit (currently I could only go -1494 spirit by reforging out of as much of it as possible, so I'd still be 160over cap with the heroic version of the trinket). As I stated, the fact that hydra proc off dots is totally irrelevant to it's uptime as long as we keep flame shock up with less than 10sec downtime (which shouldn't be too much of a hassle). On the other hand Sha'ye won't be "that awesome" because, for the same reason, as long as we get one crit every 10sec having LvB at 100% chance of crit won't change it's uptime at all.