Hello,

For me, this is not a hard decieion.  I would extract now & get
the mite treatment in place as soon as possible.  Whatever is
left of the honey flow can be the bees' winter stores.  If the
mite problem is handled, the hives will go into winter fat &
happy, ready for a good spring buildup, far better than
starting out anew with packages from which you are unlikely to
get a honey surplus in the first year.  If you save these hives
they should start out strong next spring -- but then, I'm one
of those who hates to let the bees die. . .

Fred