I totally agree with pinkham. On top of that, I would consider pushing the tree for a season or two to produce as much growth along the trunk as possible, in order to add som etaper to the trunk. It is now fairly straight and -with all respect- in need of a bit more 'wow-factor'. You might be able to reach that by planting her in a bigger container and putting her outside for spring / summer, while you are moving into your new place. If you do that: Consider organizing the roots as well, as I am pretty sure the roots will be a messy clumb, unless it was grown to be bonsai..
The tree is actually a species at risk in its natyive Australia:
plantnet.rbgsyd.nsw.gov.au/cgi-bin/NSWfl...Syzygium~paniculatum