From Buzzsaw -
We will not be releasing TF 5.0 before the end of the year.
I can’t be specific, but we hope to have a number of improvements in a release before the end of the year.
http://theairtacticalassaultgroup.com/forum/showthread.php?t=23738
I know that sometimes i tend to be nervous and impatient, and that they are working for free…but GOD…how long is it still going to take? 
Fingers crossed we get TF5 by this time next year.
an update from Teamfusion : http://theairtacticalassaultgroup.com/forum/showthread.php?t=23826
and some pics posted there :
Ahhh, Beaufighter!!! :w00t: