Complex sentence: With only the Yakima Valley Warriors left, the AIFA ceased operations; it would attempt to relaunch in 2012 with 8 to 12 teams in at least two regions of the United States.
Split into simpler sentences: With only the Yakima Valley Warriors left, the AIFA ceased operations. It will attempt to relaunch in 2012 with 8 to 12 teams in at least two regions of the United States.