I think only Margaret Ferrier (ex SNP) is getting a recall petition. All 3 Tories quit first; Johnson before his suspension/recall/by-election, Adams in support, and Warburton over alleged sexual misconduct and drug taking. Plus Dorries and her Schrödinger's resignation.
This was a Labour constituency up until 2010, so they'll be feeling pretty optimistic about retaking it. Although it's a big majority on paper, it's exactly the sort of place that should be contributing to the big national swing.