The only way I can see that reliably happen is if we include these layouts in LFS as new configs and fully support them, like any other config.
If we'd make a mechanism for stats recording for layouts instead, without including them in LFS, there'd be a zillion different layouts to record stats for (including different versions of the same layout), so that'd become a mess and I wouldn't even want to record stats for such a system I think. There need to be some rules, and hence the layouts should be included in LFS itself as configs. Perhaps then there could be even be path files for them, making everything nicer.
I'm pretty sure there's no time for that now, but perhaps in the future after the next patch and when these configs have been tested, Scawen can be pursuaded to include them, if that's possible.