Yes and we are going to make zerocoin efficient and easy to use. Right now ZCoin is the only coin using the zerocoin protocol (zcash uses zerocash). Syncing 30,000 blocks on Zerocoin took me about 24 hours on my desktop that has plenty of computing power.  This would not be feasible for Pivx because it has many blocks and transactions. I have already begun implementation of items that are discussed in the actual zerocoin whitepaper that never got implemented into ZCoin, which will make the syncing process a lot less heavy, in fact if we use the accumulator checkpoints that are discussed in the whitepaper, then we will have very little overhead in the syncing process.

Besides having a more efficient implementation, we will have a much better implementation that makes the pool of zerocoins much larger. The larger the pool of coins, the more anonymous the transactions will be. It really is an exciting project to work on, I am going full tunnel vision with Pivx and zerocoin right now