1. ZCash at launch will have a whole host of competitors (that actually have users, infrastructure built, etc).
2. With the founders reward of 10%, having this be globally accepted and no less a replacement for Bitcoin is ridiculous.
3. Clones. This is a certainty. (If at all people even deem this coin worthy to copy).
Sure, total anonymity is preferred by some and one could say has a niche market. What's wrong with Monero here? ZCash will be a cluster fuck of epic proportions, and anyone that invests in it early on, will be looking to dump the f*** out of it at a slightly higher price. Bag holders, come grab some ZCash.
According to the road map which was published on the project website in December, 2017 the team of developers in ZCash plans a series of various innovations in 2018. In particular, it is about two important updates of network: Sapling and Overwinter.
As Zikesh it is directed to fight against the most widespread problems of the sphere of cryptocurrencies a lack of confidentiality, this digital coin potentially has every chance of the big future. And, so it is possible to expect also growth of its price.
Besides, it is rumored that Ethereum is a partner of ZCash. From this partnership investors can expect improvement of scalability and individual control of all ecosystem of digital money already in the nearest future.