I'm assuming when you say "The 50SMA is approaching the 200SMA for an apparent attempt at a crossover, whether this acts as resistance or not is still to be determined" that you're referring to the DJI, cause that's the only index that didn't confirm a 50 over the 200SMA on this recent wave up...
I expect the time is nearing for this house of cards to burst... The dollar is still expected to collapse as it broke a key trendline recently... and it's next support lies below another key level which could keep it in tumble mode despite people continuously trying to call bottoms on it!