The Senate filibuster pretty much guarantees that nothing gets enacted, absent a broad bipartisan bill. Each party has much different solutions for the problem, so getting a bipartisan bill is not easy.
At the extremes, the left would like to raise taxes on the wealthy enough to sustain SS, and make it more generous. The right would be fine if it was privatized, and Uncle Sam could be off the hook, entirely.
I think there will be some sort of solution, but it won't happen until the eleventh hour, maybe even just after midnight.