BTC: $12,900
STEEM: $0.38
BTC will go up before the halving but everyone expects profit taking after the halving so not much of an effect around the time of the halving. Inevitably, the effects of the scarcity will kick in and BTC will go parabolic. Probably late next year.
Alts will do something but will not properly pump until after greedy speculators start looking for pour their profits from BTC into. That will take place after the new ATH of Bitcoin.