Yes. Jokeri Light Rail will mainly be constructed next to the existing street, which means that the bus line will be able to operate on the current route, at least in part.
In some sections, Jokeri Light Rail will have a different route than the bus line, in which cases the construction will not affect bus traffic. The bus will need to take an alternative route in some sections.
There will be changes to bus line 550, but they will be planned as long-term as possible so that passengers will not need to experience too many changes and that adapting to the changes will be easy. The changes will be announced separately on the communications channels of Jokeri Light Rail and HSL closer to the start of the construction.