Complex sentence: In late 2014 Riverside Speedway was purchased and underwent a name change, over the next few years the rack is planned to undergo many changes to the extremely outdated venue including a go-kart track paved in the infield.
Split into simpler sentences: In late 2014 Riverside Speedway was purchased and underwent a name change. Over the next few years the track is planned to undergo many changes to the outdated venue, including a go-kart track paved in the infield.