My plant has long since lost its original growing tip, and has branches on both spikes. Many of the branches will probably never bloom again, although I won't cut anything that hasn't gone brown and dried up. I can see it has had probably two dozen blooms on its two spikes. It's only been in my possession a few months, so I cannot claim any credit for most of the blooms. It's in the process of opening its second bloom right now and I will try and post a pic or two, including the multi-branched spikes.
Anyhow, to try to wrap up my rambling answer to your straightforward question, there is a good chance your plant will continue to delight you with its many blooms for a long time.