In the Season 19 trailer, Nick is apparently in Seattle as noted by Maggie (Kelly McCreary) who says to her, “The man you love is still here.” It then cuts to Meredith telling Nick “It’s been a very difficult 6 months.” So, we’ve got a bit of a time jump but not much movement in the Nick and Meredith department. In an interview with Digital Spy, Scott Speedman was asked if he and Meredith would end up together. “I think they’re destined to end up together in some form, or some way. But you never know,” he told the outlet.

Source: https://www.distractify.com/p/do-meredith-and-nick-get-back-together