D3M support will require MCD deployed on all these chains which is one of our highest priorities atm. We are expecting to launch on Arbitrum and Optimism towards the beginning of next year with more chains following shortly after.
We would also have to build a Hop D3M, so even optimistically we are at least 6-9 months out. Maybe something can be worked out in the interim period as we would prefer not to have to shut down the DAI Hop bridge.