Welcome to JBoss community. You have found what we like to be final destination for your real time data virtualization needs. You questions and comments are always encouraged here.
To start take look at quick start example to understand the basics, read the documents and blogs to get yourself familiar with the features of Teiid.
Yes, we have a roadmap page here. However, most time it is not fully elaborated as to what features are coming next, may be few top ones. However, you can see Teiid JIRA system, where we catalog all the features that have been requested and thinking about by the versions. We also actively solicit feedback from community as to how they use Teiid, and how Teiid can make data integration easier for them.
i already found the roadmap, but as you said it is not really saying what's coming next... BUT on the other link i found something better, and basically what i was looking for: this. Many thanks... now i can really start posting newbie questions...