From what I've seen so far, Highlander Priest and Cube Locks are in surplus. What are the odds that these decks will dominate the meta till the next patch and should wait for a bit more to craft a few legendaries? I would greatly appreciate some help.
Don't know if you've read it already, but it seems appropriate to quote VS report #75 here (specifically, "meta breaker of the week" section):
A new expansion launches, new strategies form and when the dust settles, Valeera remains unimpressed with the competition. Tempo Rogue has solved the meta, for now, and its formula of success is to keep aggression in check while keeping enough game to threaten control. It’s very difficult to consistently beat Tempo Rogue, even for Warlock these days, since Rogue becomes a frustrating matchup with Spellbreaker tech.
As Tempo Rogue sets the tone for the early game meta, Razakus Priest sets the tone for the late game meta. Two decks with very few new cards are currently shaping K&C’s landscape.