I.m.o. Zcash ought to get away from ASIC miners entirely, and as fast as possible.
They’re in large part, non-aligned mercenaries (they fight for security, are paid in ZEC) who have a near-zero appreciation for holding/ storing their ZEC.
(I’m doing some research into past community PoW/ PoS threads, and was very caught off guard that nobody paid this thread any interest)
Anticipate a poll in the next day or two, where the community will be asked about their current opinions.
- remain as-is, PoW with ASICs
- transition to Hybrid PoW/PoS, then eventually to total PoS
- transition to Hybrid PoW/PoS, and remain there (I believe this post by @PhusionPhil is an example)
- transition directly to PoS (avoiding the engineering of a Hybrid consensus state)