The tweet claims that we can expect to see the HTC Butterfly 3 and an updated HTC One M9+. This is pretty much new information since we have not heard anything about a new HTC Butterfly phone or an updated One M9+ (or why it even needs to be updated since it was only launched in April).
@LlabTooFeR goes on to state that the Butterfly 3 will be an exclusive to the Chinese market while presumably the updated One M9+ will be for global markets or it might even make its way stateside. We can’t be sure if any of these devices are overlapping the ones we have heard about so far or if they are completely new, but based on the naming scheme these might be separate devices from the rumored HTC One A9.
No word on specs either, but in any case take it with a grain of salt for now and remember to check back with us on the 29th of September for all the possible details.