Novus Ordo Catholics can go to Heaven. Unfortunetly though, because they are involved in a watered-down version of the Faith alot of them will be in sin. But they can still be saved. If, however, they know the TLM is the superior Mass yet reject it anyway, they cannot be saved unless they repent.
This is something I struggle with. I hear people say there is no salvation outside of the Catholic Church, but when you think about it that probably means that 80% of the world has no chance of salvation. And of the remaining 20%, only a certain percentage of those will achieve salvation. This is why I am uncertain of any dogma that preaches there is no salvation outside the Catholic Church. Isn't it possible that a Protestant could repent of his/her sins and not go to hell for any repented Mortal Sin? They just wouldn't be reconciled with Jesus Christ because they don't have the Eucharist. They might go to Purgatory in order to be reconciled with Jesus Christ after being purged by flame. Just some thoughts.
Christ said many times in the Bible that very few people make it to Heaven. So that being the case, why would it be hard to comprehend that most people don't go to Heaven?