The only authoritative source on this is ICANN/IANA (and despite its name "icannwiki.org" is not run by ICANN so should not be taken as authoritative source)
Specifically you can go to the following addresses:
If you do a search ...
I don't think the future registry has been appointed yet. Apparently you still have 3 applicants and it hasn't been decided who will own .DATA in the end.
Also there seems to be a "warning" on the Dish application because of anti-trust/anti-competition issues.
Source : https://icannwiki.org/.data
What's for sure : don't expect it in 2019...