Given concerns expressed about the aggressiveness of the multipliers (and the fact that it will take some dev time to implement this in the reward stack anyway, + the delay caused by the holidays), I think it would be worth considering an amendment vote to specify a timeline for the application of the multipliers.
My suggestion:
Specify that the new multipliers will be applied in three stages of two weeks each. This would result in a reduction in the reward rate for ETH-denominated assets by 1/9 in each of the two week periods, and a reduction in the reward rate for BTC-denominated assets by 5/18 in each of the two week periods. The first period would start once the multipliers are ready to be implemented from a technical standpoint, which would be either the first or second week of the New Year.
Please let me know any feedback on this; if the consensus is favorable we can move to a vote next week.