Right now your trees shouldn't be putting out much foliage but they will be adding girth to the trunk and branches.
Keep an eye on those wires! Pines can benefit from letting the wire cut in a bit. They heal quickly and a little cutting-in can make the branches thicker with callous tissue. On other species it's better to remove any cutting-in wire and reapply.
Keep fertilizing your trees. Doing so will increase cold-hardiness and help build resources for Spring growth. Japanese Maples can benefit from low-nitrogen fertilizer as they may push growth with too little time to harden-off before frost.
Cold-hardy trees should be kept outdoors still. We won't start protecting them until late November.
Tropicals should be brought indoors now. You'll want to give them time to adjust to the low light before the heat comes on and dries the air. Just keep an eye out for bugs that may try to attack your trees in the more stressful state.
As always, if you have any questions we're happy to help!