Yet to be confirmed, but it has been announced by a Thunder Tiger insider.. I'd say the source is pretty solid.

Important Thunder Tiger Helicopter Announcement and Upgrade Offer
Due to market conditions, Thunder Tiger has made the decision to discontinue part support for the below heli models. Please note there is still stock on many parts for the below discounted helis, but once supplies are depleted they will no longer be produced.

· Raptor E820 (4793-K10)
· Raptor E720 Flybarless Kit (4791-K10)
· Mini Titan E325S FBL (4710-A23)
· MINI TITAN E325SE ARF (4711-K12)
· MINI TITAN E325V2 (4712-K10)
· Mini Titan V2 SE Torque Tube version (4713-K11)
· E325 V2 FBL 450 ARF (4716-A10)
· Titan X 50 Nitro Flybarless (4857-K10)
· Raptor G4.1 90 Nitro (4895-K10)
· Raptor G4 90 Nitro (4894-K10)
· Raptor 50 Titan SE (4854-K10)

To compensate owners for this transition, Thunder Tiger and HRP are willing to offer extremely discounted prices. We will have 100% guaranteed parts support for the foreseeable future for the below models. Per Thunder Tiger’s production schedule, we should have full parts support within 5-6 weeks.

Raptor E700 FL V2 (4761-K20)
o Normal Price – $699.99
o Customer Appreciation Price - $420

Raptor E550 FBL (4732)
o Normal Price – $649.99
o Customer Appreciation Price - $390

Mini Titan E360 (4717)
o Normal Price – $449.99
o Customer Appreciation Price - $270

If you are a current owner of the above discontinued models and would like to take advantage of the Upgrade Program offer, email contact@hobbyrecreationproducts.com with your contact info and a picture of you with your discontinued model. Please reference “Thunder Tiger Upgrade Program” in the subject line. If your desired model is currently out of stock on our website we will get your order filled as soon as possible (limit one per customer).