Not a lot in the way of mods so far.
Some of the OEM accessories are cool. Wheels make a big difference (my opinion) in looks and a definite difference in MPG. We went from 27 pound wheels to 21 pound wheels and saw 3 to 4 MPG increase per tank.
Suspension is a ways out. Not a lot of shared components with other Honda cars so the aftermarket will have to start from scratch. Being as this is a Hybrid, I am not expecting a large aftermarket.