Sorry, don't know. Shouldn't really be replying!
According to another site, they turned away 36 first choice boys, some of whom were west kent boys who had passed the test and were offered non-selectives. I have seen hints on here that there were only 4 west kent boys who passed the test and were not offered a grammar school on 1 march. Is that right?
If so, another class at twgsb seems unlikely unless they are wanting to pull in some extra children late in the day from other schools inside or outside kent. Don't some grammars offer sneaky late sittings of the 11 plus to boost their numbers sometimes?
If twgsb has true difficulties fitting in an extra class year on year maybe they are saving up space for a more bumper year of applicants than this one?