So for all interested here's the short quote from Intel which clears the doubts:
[quote:3m4yezwm]Paul F. (Intel) Tue, 09/15/2015 - 16:02
For Android-Cordova you should use Crosswalk 14, until we make Crosswalk 15 available, at which point you should consider moving to 15. The Crosswalk 10-14 builds we support all use Cordova-Android 3.6.3. The new Crosswalk 15 will support Cordova-Android 4.1.0. Regardless, the Crosswalk builds are not impacted by the removal of CLI 3.3 and CLI 3.5.