I opened 87 Tier 4 crates last night. I had 3.5 warehouse tabs filled with Ops and FP CXP packs. Popped a 100% boost and started clicking.
I ended up with two 248 set pieces, three 246 set pieces, a 248 offhand, two 246 mainhands, seven 246 relics ( only kept two, others were the crap ones), 248 implant, 248 earpiece, five 246 implants (kept only one), three 246 earpieces (kept none), and numerous 244 items. I didn't keep any of those. So for me at least the command crate drop rates have been vastly improved. I opened over 500 Tier 3 crates and gotten a whopping three 242 set pieces, two of which were gloves. I really hope Bioware doesn't nerf these into oblivion.