Complex sentence: On April 7, it was announced that current WB affiliate KUWB would affiliate with the new network, leaving KPNZ to return to either independent status, or affiliate with News Corporation's My Network TV.
Split into simpler sentences: On April 7, it was announced that current WB affiliate KUWB would affiliate with the new network. This leaves KPNZ to either return to independent status, or affiliate with News Corporation's My Network TV.