Sys coin 2.1 was supposed to come out in June, then July, then early September. Lesson devs are trying to sucker in as many people as possible
We launched the beta version in June, since then we've been working hard at resolving issues that came up and also adding more value-added features to the code.
To know if a project is actually advancing and you are not all that technically advanced to actually look at the code, you should really check their punchcard. Take a look at ours:
https://github.com/syscoin/syscoin2/graphs/punch-card