coalesce into (something)
For two or more separate thing to merge or form into one thing. Initially, I wasn't sure if the movie was a drama or comedy, but it coalesced nicely into a dramedy as the plot unfolded.
coalesce into something
[for two or more things] to blend or fuse and become one thing. The fading colors coalesced into a gray blur. In the distance, the crowd coalesced into a single blob.