The best news in this thread is that this takes Harmonix by surprise too.
Again I cannot help but wonder what the contract read like if Fender can unilaterally pull out without a breach.
However, it's still the silver lining in this cloud and everyone needs to take it away with them from this thread. If HMX wasn't privy to the decision than they aren't done with a real 6 string guitar peripheral for this game.
Translation, someone else will make them for us.