The Ubers forum does not decide what goes on in the OU metagame, whether Kyurem-B drops or not is none of our business, as its viability in Ubers remains unchanged.
Kyurem-B faces a few several fatal flaws,
-No physical Ice-type STAB
-Opportunity cost, if you're going to use Kyurem-B make what you're making it do isn't outclassed by Kyurem-W
-Stealth Rock weak.
-Not amazing Speed tier, ties with Rayquaza, lowering its viability as a Choice Scarf user.
-Strongest move locks you in, leaving you prone to revenge-killing.
That being said, there are a few cool sets that Kyurem-B can run to differentiate itself, although they aren't amazing
Mixed - using Ice Beam and Focus Blast (or Hidden Power Fire) gives it the ability to crush Groudon, a common stop to physical attackers, and Ferrothorn / Forretress (with HP Fire). Outrage and Fusion Bolt let it pump out damage and get an SE hit on Kyogre / Lugia.
Mixed Hone Claws - the sheer power of +1 Outrage is illustrated when it OHKOes Ferrothorn after a Blizzard. Hone Claws allows you to use the 70% accuracy move with decent efficacy, and the strength of Blizzard over Ice Beam makes it worth considering.
Choice Band - the classic, don't use Freeze Shock. A lot of Steel-types so this set isn't amazing, Fusion Bolt wrecks Skarmory though, which is cool.
Espeon is okay as a Dual Screener, Latios works too, as it has Memento and good special bulk. One can also compress double screens on Deoxys-S at the cost of only having Stealth Rock and Taunt.