Generally, a mature spike will either always be a spike, or if points develop in the next year or so, they won't be "such a much". When I say "mature", I mean 2-1/2 years and older. Texas Parks & Wildlife has observed mature spikes, and yes, some develop the common style of antlers, but they're not impressive as compared to bucks with normal development.
The pictured deer of this thread, however, are not what are usually seen as mature spikes. I've always heard of the effects of injuries on future antler growth, but have seen only one. It had a nice five-point antler on the left side, and a foot-high conical shaped point on the right and a "forest" of small spikes around the base. There was a scar of unknown origin on the left lower shoulder.