Re: Dear EA: A reasonable solution to "Unicorn Chomper"
I have the Unicorn Chomper thanks to hitting max rank in GW1 despite not playing it anywhere near as much as GW2 but I used a LOT of challenge stars to bolster that rank before the window closed to get it.
I have zero issue with EA/PopCap making it available for a longer period of time by playing GW1, heck as suggested by the OP here, remove the deadline entirely so people can unlock it. It encourages people to play the first game again, which I do from time to time even at max rank, and for people like me that want all the things but may have lacked the time or other resources to unlock it, lacking this character would be irksome.
I'm also open to other ways to get it. Not sure what other ways would be on par with getting max rank in GW1, but I never felt like I was grinding for it. If you want to see a serious grind play World of Tanks once you get past tier 6 in a tank tree. >.<