Most of those features are coming, he needs a little more time i think. What he hasn't said anything about was ROM, tabs (i explained in my own comment that it would be hard when editing chips was implemented, but could still be useful), he hasn't said anything about clocks yet, i don't think that he will make an ASCII character display, but he will make a seven segment display. Using an encoder you could still use it as an ASCII display. If you're looking for a full display (i forgot how many pixels, but it was quite a lot. even with color. ) you can look for lime inc's refresh of the simulation, i don't think i can link them here. they have quite a few new toys :)
You can basically save unfinished chip designs and edit them later once he adds editing chips.
You can already rotate chips by pressing q and e while placing a chip.
I am quite excited about the other features you mentioned like zooming in and out (i asked for that myself too), ROM would be a REALLY REALLY nice addition for actually creating some programs, adjusting the clock speed, a ASCII character display, though we can make that ourselves and tri-state logic would also be cool.
Anyways, check out the lime inc remix if you can't stand the wait and check this page every day, he should soon release a update. (or check his youtube channel)