As far as I know, there are two types of TPMS systems considered in the industry,
direct (sensors, banded or stem [rubber or aluminum stem types]) and
indirect (through ABS/wheel speed calculations).
Using
www.willtheyfit.com and
http://www.1010tires.com/Tools/Wheel-Offset-Calculator the 16x6.5 +42mm should provide 32mm more clearance on the inside of the wheel and 6mm more clearance from the fender versus the OE Honda 18x8 +55mm wheel.
205/65R16 will fit fine on a 16x6.5 and will provide a close rolling diameter to the OE 235/45R18 (which if I recall correctly, is what Honda is using on the Accord on the 18x8 wheel). 215/60R16 is also a close size (and a more popular OE size with various brands) and may provide more options/selection in that size than the 205/65R16; I have not yet looked further into that.
With all that aside, good thing is that I believe the center bore of most if not all Hyundai is bigger than Honda's 5-lug patterns (save the newest Oddeseys, Ridgeline) so you should have no issues fitting the Hyundai wheel onto your Honda; the wheel will be considered 'lug-centric' instead of 'hub-centric' however.
There was a comment about the lugs of Honda wheels being the same that of Hyundai; all Honda OEM wheels that I have come across, be it steel or alloy, use a ball seat/spherical-seat. The Hyundais I have come across so far all use cone seat (otherwise called acorn). The stud diameter/thread-pitch on both Hyundai and Honda is 12mmx1.5 (I haven't come across a Hyundai that wasn't yet) so if you use the Hyundai wheels on your Honda, you will have to source some 12x1.5 cone/acorn seat lug nuts to properly secure the wheel to your vehicle. Since your spare tire tools are 19mm I'd stick with 19mm hex head lug nuts.
And for the banded sensors, these are generally placed into what is called the 'drop-center' of the wheel, unless you have WELD truck wheels where drop centers are non-existent (mounting and dismounting tires on WELD wheels is oh-so fun! not). Ford seems to commonly use these banded sensors except I've notice that Ford has been using valve-stem mounted 'rubber sensors' on their newest models.
I may have mis-typed some info here; apologies in advance.