According to PWInsider, the reason why TNA has been cancelling Impact Wrestling tapings in November and December is that they are attempting to work out a deal with Universal Studios in Orlando, FL wherein they would tape 4-6 weeks worth of television at their old home at Soundstage 21, or as it has become known, the "Impact Zone."
Soundstage 21 is currently occupied, being used as a part of the Universal Halloween Horrors event, but will become available after November 2nd.