BTC Dominance and potential double-top reversal scenario

BTC.D looking top heavy and currently consolidating just above support level (~60%).

We are also looking at a potential double-top setup (with neckline at 57.2%), the completion of which takes us to the low 40s.

Needs to break that neckline first but are altcoins about to go berserker mode on us?

A bit of a waiting game but we'll get the answers soon enough.