They have had 2 years to add horizontal content, what did they bring you from 2 years of hard work? Basically nothing.The soft cap for this event will be 230 with floor 6. After this event, there will be no higher level content for a while.
For the next 3-4 updates OTM will be focusing fixing the core problems of the game and adding in horizontal content like professions and interactive mounts etc.
The next big patch for this update will bring the spring event. The patch after that will bring floor 6 (excluding the Gelebron encounter (I think)). After those, you will see the first of many horizontal content additions - the bounty system.
This year, you can expect to see interactive mounts, equipment on your skill hotbar, and the first two professions, as well as fixes for a lot of the things that players gave feedback on like drop rates, class balance, etc.
I figured it out a long time ago and quit then, take a long hard look at what you are buying into, you won't miss it.