Re: Rent Cap or Other options
There is a rent cap. I believe it is 90% of the purchase price.
Permanent house ownership was put in as a customer request. Turbine got hundreds of post from angry customers demanding that Turbine "Stop taking my home". There are number of customers that were opposed to the idea (including me). Our numbers are small. We got trampled into the dust the herd of "Permanent ownership" customers.
As to whether Turbine will start taking homes again in the future. No idea. Part of the problem is that housing has been a unsupported feature for years. There are a couple minor changes coming in Update 6 - probably the first modifications since Mirkwood era when the skirmish NPCs arrived. Shortly after Mirkwood, Jeffrey Steefel was moved to another project. Kate Paiz arrived to oversee the F2P feature.
Unless stated otherwise, all content in this post is My Personal Opinion.