Will not heaven be monotonous—always existing with no hope of change?

The Catholic Answers

In heaven we shall be with Christ and as Christ. This supposes conditions of which we have no experience on earth. It is little use guessing. We have but to accept the fact that there is a heaven, avoiding sin and serving God in order that we may attain to it. Speculate about heaven as we will, we must not miss our eternal happiness, for we cannot afford to be without it.

Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty