The thing is there are so many coins with privacy capabilities these days, You have Monero, all the Zsnark coins, Deep onion, Byteball (blackbytes), Dash etc etc. Zcash has an uphill battle, It's a fork of a fork of a fork and is starting to fade into obscurity. It's swimming in a pool of giants, and doesn't even have a presence on Bitcointalk anymore after the ANN was locked. They didn't have an ICO so there are no funds for marketing. With the marketcap currently so low, i have a hard time seeing how they're going to gain the exposure to dig themselves out of the trenches.
The best bet at this point is for them to hope that Zcash explodes and they can ride the wave like how ETC did with ETH. But even in that scenario they might get overlooked for zClassic.
There's a development/marketing fund that is derived from a portion of coins mined. A percent off all mining goes into the dev fund, kind of a reverse pre mine.
I know they have a founder's reward just like Zcash. But the thing is Zcash was the first and generated alot of hype, with a token being more than 1 BTC when if first launched. With Zenn i feel like the marketcap has fallen so low that it's hard to dig yourself out. At a 5M dollar current marketcap with the coinprice being so low, that Dev reward is negligible. The team will have to put in alot of free work or build a strong community behind this project. The latter is going to be really hard to do without a presence on the forum.