This movie just ended up being somewhat 'meh' for me. It doesn't reach the heights of the original (although maybe my opinion is a bit wrapped in nostalgia) but it's nothing terrible or offensive either. It's just another story in the universe Scott & co. created 20 years ago.
A few thoughts / notes. I'll hide spoilers for folks who haven't yet seen it:
I think we could have scrubbed the Lucius character all together, and instead focused on Pedro Pascal & Connie Nielsen's efforts to overthrow Rome. In the beginning, they're discovered and Pedro Pascal is thrown into the arena. Denzel is still vying for the throne, so he kills Connie Nielsen & sets Pedro Pascal on a course for revenge. Square the circle somehow with the son... maybe he's in hiding and Pedro Pascal needs to escape in order to find/free him & restore order to Rome.