Point you in another direction with the new Meze Liric 2. I was also considering the E3 but couldn't get one to audition. So now I have the Lirics and have already ordered a new pair off the back of a living with an audition set for the last week. I would not ditch the Denons, they are staying as they do sound better on certain albums. I only play CD or SACD.
With albums that have a recessed mid range the Denons do a better job of bringing those mids forward into the mix, especially vocals. The Lirics are capable of pulling back those albums that are mixed a little hot in the treble. It's the soundstage is the biggest difference, the Meze are very wide for a closed back, it's pushing the Focal Clear MGs in this department.
There's a place for both the 9200s and the Lirics in my collection. If anything it's the Focals that are at risk of losing out and landing up in the classifieds.