I'm highly skeptical about Zcash in the long term, for the same reasons I'm skeptical about Bitcoin.

If I remember correctly Zcash is pretty much a copy of Bitcoin tech, with added anonymous feature. So the governance system is still almost non-existent and block production will waste huge amounts of energy if the coin will ever become popular.

There are many blockchain 2.0 projects that have thought about these things already but Zcash decided to ignore all of them and go with old design. It will be really hard for them to update it in the future, just like it is really hard to update Bitcoin.