Yup. I'd be curious to see in years where we have +QBO and strong +ENSO which factor ultimately has a stronger influence on the polar vortex and what those years tended to turn out like. Hopefully the fact that this year will be possibly a historically strong El Nino will help counter the +QBO a bit better than it might otherwise. Of course, SSWs are only half the equation and we have seen years where those effects don't always translate to favorable blocking in the troposphere.
So, as always, who knows except mother nature herself.
Read through that article and to sum it up it basically said despite the fact we will be in +QBO. A stronger Nino can help the chances of an SSW happening because of a really strong Aleutian low.