I asked the same question and received the below response. (To give some context I was searching for expo opportunities for my Falls Church Jr Team. I saw the November tournaments on the VADCFLL website and asked whether those tournaments included Jr expo opportunities). Karen Berger was very helpful and provided this response:
of the regional tournaments do have Jr.FLL expos but it is site
dependent (depends on the size of the venue, availability of volunteers,
etc.). The tournament director for the Falls Church event is Alex Nette
and he will have to let you know if they will have Jr. FLL or not. If
they don't, some of the other Northern VA tournaments probably will.
November regionals and December state tournament are the only official
events in Virginia/DC. There will be some additional "off season"
unofficial events throughout the spring but we do not run those
officially and some may have Jr. FLL expos and some may not. Most will
be announced on this listserv. I don't know what is on tap for
January/February (none come to mind but some stuff might pop up).]
Skip, where is your team located? I wonder if, in the absence of Jr expo opportunites at the official events, we can get enough JR teams that are proximate to one another to set up an unofficial Jr event.