I am currently contemplating whether I should release the version as it currently is with only line 2 and 4 operating, as I find myself stuck with too little time to actually really work on the map. I do still plan to continue and finish it at some point, but it's going too slow to actually keep it unreleased endlessly. Especially considering I've been working on the map for years.
I'd still need to do some work, for instance for timetabling (The Current timetable is on the tight side),- and rebalancing passenger numbers (There is too many now compared to realistically looking at the character of the city.) and making an extra tile next to the main station, as I had a line planned over that road that I won't be doing for a very long time at least I didn't make a place holder to make it nice currently.- (Which can be seen quite well in the line 2 timelapse.)
So yeah, to summarise, a few more steps and I'll release a beta Version 0.2.8 to the public. - Expect that in the coming months.