To be fair, it's pretty tough (for me) to interpret this (from the mrdotsgames website) =
"We can’t say for certain, but we know it we will have at least 8-10 more updates instead of just three, which means it will take us the rest of this year and the whole of next year to finish it."
So, assuming lowballing it at 8. So, for 2019, every 3 months, that's June, Sept, Dec = 3 updates.
Also assuming that in 2020, they don't take Jan off again, that's March, June, Sept, Dec = 4 updates for "the whole of next year".
Now I know they said ballpark, but there's a few ways that I personally see it.
1-The target is "end of next year" at the current schedule which means we have 7 updates left max.
2-The target is "end of next year" at a different schedule which means to hit Dec 2020 for 8-10 updates, it means a 1-3 extra releases in a 19 month spread ergo a release every 2 and a bit (ish) months.
3-The target is "8-10 more updates"at the current schedule which means March to Sept 2021.
NO BIG DEAL... I'll wait either way. Just, numbers wise, that's how it adds up for me unless my math is wrong.