There could be a few kids from the children/siblings of students in the earlier series. There's lots of opportunity here.
- Izzie Charles (Chlo and Donte's daughter) would be 12/13 now. She may also have a sibling.
- Lauren Drummond seems to be free at the moment and I expect she will return as Mika. I think Thomas Payne might be living in America so they will have to recast for a Brett return. Brett and Mika could've easily had a child within the couple of years after they left, although I imagine they would've been born after Chlo left or the baby would've been mentioned. Mika and Brett's child could be in year 7/8 now.
- Cheryl Bryant (Janeece's daughter) would be around 12.
- Prince Kelly (Sam, Denzil and Earl's little brother) would be 15/16/17. I wonder if the school will still have a 6th form.
- Dannielle Harker could return as a businesswoman with a couple of kids, one in primary school and the other starting at WR. I's watching the original run on Iplayer at the moment and am loving Danielle.
- Kim has a son (now 12/13) so I imagine he will appear in the new series. I know Kim 'adopted' another child in Rwanda but I think she was taken back there by her biological father.
All the possible 'kids' judging by instagram would be too old for the above with the exception of Prince Kelly if they were to go down that route. I'd love to see Rose back in a recurring capacity but don't think it'll happen.
Can see Chlo potentially making a cameo or at least being mentioned (never liked how neither were mentioned at the very least when Tom died), but imagine Brett just wouldn't be in the picture.
I think, basing it on series year (I know a couple of the series were slightly longer/got a bit muddled time wise) Kim's son would be starting year 7. If I remember correctly one of the reasons they've brought it back is to represent how schools have been impacted by covid. So this could potentially be quite a good storyline.
It does feel like Cheryl's daughter is going to be present based on rumours of her her making an appearance - not sure how I feel about that though.
Hopefully they get the blend right with links to old characters and completely new characters!