howdy! its possible that it will continue to bloom and extend for awhile. for our oldest noids, they finish about 2x as long as they were with the original flush of blooms...ok, maybe another 1/3 as long!
but, as mentioned, the pro nurseries can sort of trick the spikes to grow longer by really controlling conditions and times and such. but yea, if you got 2 spikes then you must be doing something right!!!
also, pics or it didn't happen....

and welcome to the OB!!!