Paid a visit to Brum in order to do Millennium Point today, at lunchtime, and I didn't notice any problems with doors. Maybe, I was lucky!
Took tram 55 from Grand Central to Bull Street, then I took an "Edgbaston Village" tram (no. 47) which I thought might do Millennium Point, but it went back directly towards Corporation Street! So I alighted there and walked back to Bull Street. But at least by that point I had "reprised" the original route to account for the new junction.
So back at Bull Street, I saw that the next tram from Wolverhampton actually had "Millennium Point" as its destination (no. 49). Therefore I finally got to do the new branch. I alighted from 49 and let it depart so I could take some pics of it and the temporary station. Some track has been laid to either side of the station, which occupies its alignment. Also saw the Curzon Street building site had big blue hoardings, so couldn't see much. Happily, the original station building was visible in the distance. The next tram to arrive was no. 58 (pictured below), so I boarded and returned via Corporation Street to Grand Central.
Of course, only did Bull Street to Albert Street, and Albert Street to Corporation Street. Hopefully the "missing" sections of the triangular junction will open when the Dudley branch opens in August?