We've seen some big changed since 2010. We're now on Chapter 6 (though they did get rid of the chapter system and just call it patch 6.0), and there has been several management changes. We went from Frogester NA to Frogster EU (which turned out to be worse), then went to Gameforge Berlin, which was even worse. Now, we've moved to Gameforge Karlsruhe, and so far, it seems promising. They've communicated more with the community in 2 weeks than Berlin and Frog Eu has ever had combined, and the same goes for the amount of info they that have given.
Orange duo stats are currently the best, though very hard to obtain (from Proofs of Myth, or PoM's for short), which drop from Hardmode of the old worldbosses (lv 75, some have up to 200 million HP...), though can also be obtained from Proof events, which have happened twice so far.
There was also some item shop changes that happened at the start of Ch 5, if you scroll thru the news, look for Item Shop Repricing.
As of the past few weeks, there has been massive item Duping happening, and Gameforge Karlsruhe is currently busy banning people and deleting duuped items. They're also starting to do some more quality control (Refer to Yoman's article on RoMwelten which translated the German meeting between over 100 guild representives and Gameforge folks
Gameforge Karlsruhe: German CM reveals what to expect from move to Karlsruhe:), and are communication with Runewaker to try to get their fixes.