In fact the station's name is known and it will be Mladost 3, since it is between Mladost 1a and 3.

The other branch, the one TAfrikanski is talking about is neither going to pass near Mladost 3, nor would be in construction until the 2013-2019 EU financing period, and hence its names are not known yet indeed.

Also, that thing he claimed about the stations-naming is completely unfounded and maybe caused by a combination poor ability to read signs (functional illiteracy?) and bad luck, causing him to take the wrong exit every time and think he mistaking the other one for the next station.

But he is well-known (and frequently mocked) around the bulgarian web-space for talking illiterate, unfounded and annoying crap about this particular city, so I guess it doesn't come as a surprise after all.