HTC brought the famous sprinter Usain Bolt to promote HTC Bolt. However, HTC Bolt is exclusive to Sprint in the US. The same device will launch with a different name outside the US.
Previously, @evleaks suggested the name HTC 10 evo. Now, another reliable leakster, @LlabTooFer confirmed the name. Further, he narrowed down the worldwide launch to EMEA. This means it will be launched only in Europe, Middle East and Africa other than US. Therefore, some regions will miss out this HTC device.