Al Dewar from Character Options has teased this image of the 5.5 inch 13th Doctor facing what looks like her three current companions of Yaz, Graham and Ryan.
We can only see the three new figures from the back, but I can see some re-use in the bodies Yaz looks to be parts from either Sarah Jane Smith or Marth Jones. And the Cutter figure from Primeval for Ryan. I suspect the Graham body will be a re-use also.
The Doctor is stood next to her TARDIS, and the Doctor herself seems to have a belt or something around her waist - something not included on the first single card release. I suspect this is a new Doctor and TARDIS set.
I am not sure how likely it is that these might just be a B&M set for later this Summer? Otherwise we'd expect a late 2019 / early 2020 release.