Superbike racing is irreparable in its current guise. International motorcycle racing has two 1000cc classes and two 600cc classes. Production racing has one of the least efficient business models in the racing industry. Until this era of confusion is brought to an end, production racing will continue its slide into obscurity.
Furthermore, if Dorna go over the top of DMG by starting a North American series, Dorna can eliminate the possibility of running events at any ISC venues. In other words, no more Daytona 200, and no access to the Florida bike market. Doesn't sound like a particularly realistic rumor, does it? Unless DMG sell out, Dorna are probably not starting an NA series.
Regardless, it's sad the FIM has taken so long to act. They should have been scrambling to fix SBK racing when the German, Japanese, and Australian series started coming apart.