In my opinion the game-changing potential of ZSAs is bottlenecked by the lack of a bridge to Zcash, and delays are thus not that important. I think most people who look forward to ZSAs are looking forward the most to a shielded stablecoin. I don’t think we will get an issuer to issue directly on Zcash, so we will probably need to bridge it. The bridge closest to completion is the Red Bridge to Avalanche, but it isn’t designed with ZSAs in mind. Maybe @mrkit2u can comment on whether it is feasible to have a bridge that supports bridging stablecoins to Zcash in time for NU7.