US SPG amex getting nerfed from 1 SPG to 2 Marriott, I would expect the same here.

They're getting an annual free night up to 35k, here's hoping we get the same

I also expect the amex transfer ratio to go from current 2:1 SPG to 1:1 Marriott.

Amex platinum will likely stay at gold, getting Marriott gold is a one time merger bonus for SPG members, when in reality the requirements to earn Marriott old gold/future platinum through nights is a huge disparity over SPG gold. Compared to today, this is a devaluation, but is essentially just going back to pre merger state