there were a few projects in the past, but they all seem to be on hold oder canceled, like unicom tower (about 65m)
so seeing something in construction is great for bremen.
it will be the tallest office building in the city, only the chruch ist higher (and television tower etc.)..
when it's finished, there will be a great light show at night, they hired a light designer to create a nice atmosphere at night, but that is surprise