IMO, if you’re not bored of CS yet anyways, there’s something wrong with you. We’ve all been playing the same maps for years now, it’s not really a big deal. Play maps that people want to play aka ferno, d2, nuke, train, office, ETC. No need to change up the rotation completely. Add like 1-2 new maps in everyone few months, but keep it generally the same.
We have a rotation that is working now..leave it until you actually notice a significant drop in the server population and then fix it.