My SDCC Rodimus arrived on Monday. The color is a bit brighter than KP, but still good. That feels like the end of an epic for me too. I do own every Alternator and used to have every BT before the line was cancelled. Those and Masterpiece are the only TF lines I collect. I have pre-ordered BT-18 Rijer - which will make 4 Ford GT variations.
The Japanese version of Hasbro's Masterpiece Starscream does have carbon/scorch/weathering/poo on it as well. It is still unknown how it differs from the Walmart release, if it does.
And it wouldn't suprise me in the slightest if Takara do release an 'Animation Color' variation as well, e.g. MP-7, depending on the success of Hasbro's version.