Just received in an email the following updated information about the Release of Butterfly Tenergy FX 

Butterfly Tenergy 05 FX is being released in July

But I´ve just read a post on a German forum from a guy who talked to the
personnel of the Butterfly sales booth at the German Open, and they told him
05 fx is due for July, with 64 and 25 to follow in 2011.
 

In my world, 05 fx will be all I ever need (although I must say I tried the
new Killerspin stuff and it´s good). And yes, one day I´ll join your forum,
now that I´m back to playing tenergy

The following was posted 18 March 2010 - Tenergy FX we predicted would come out in April because we studied the way Butterfly releases products in depth.  However we didn't plan to see Butterfly SpinArt or Spin Art come out so soon.  So it is highly unlikely Butterfly would ever release so many very new popular items at once.

With further research we are getting only rumours which seem quite logical that Butterfly Tenergy will be released sometime before Christmas 2010.

Over at a French table tennis website Table de Tennis one of the users said he sent some mails to some dealers, and

they were all unanimous: Tenergy FX will not be released before September 2010.
 

I imagine Butterfly want all the Equipment Junkies to first buy Spin Art before they release their new wave of Tenergy Products.