Which are the sins that will not be forgiven in the age to come?

At Matthew 12:32 we hear some tough talk from Jesus: > Whoever speaks a word against the Son of Man will be forgiven, but whoever speaks against the Holy Spirit will not be forgiven, either in this age or in the age to come. I wish to know whether there are other sins which fall in the category of those which will not be forgiven in the age to come , say, desecration of the Holy Euchariat , or say, murder of an ordained priest . What do the Catholic Church teach about the sins which may not be forgiven in the age to come.