Teiid has been under the LGPLv2.1 since its initial open sourcing effort. Current trends for JBoss projects are toward more permissive licensing. Many JBoss projects have already moved to the ASL (Apache Software License), and there is interest in having Teiid follow suit. We'll track this effort under https://issues.jboss.org/browse/TEIID-4474.
If you have been a contributor we'll be reaching out to you regarding this proposal - or even better go ahead and leave your thoughts on the issue.