I think the Triumph dealer meeting is in September. That is usually when they announce new models and/or changes in their line up. If you have waited this long and dearly want a touring model you might as well wait another few months to see if they announce it.
I think it is safe to say they will offer a touring model but it might not be what people expect. I doubt it will have as much storage capacity as a Gold Wing, Electra Glide or Star touring models. but that is just my guess.