The real problem is, we can never be sure that Bitcoin will have another bubble at all.
When enough new, inexperienced speculators come into the market, we will see another bubble.
I don't know whether it can survive the bear market with its position as Digital Cash #1 with things like altcoin competition (Litecoin is coming to MtGox, and Ripple might be a true future competitor) and problems like the block size limit. Thoughts?
That may be impossible to predict. Usually the first comer garners a natural monopoly. That is why there is only one big eBay, only one big PayPal, only one big Facebook, only one big Google. Of course these don't stay natural monopolies forever, but usually they can cling to their position for many years.
That said, if a new digital currency comes along that has at least one clear and important advantage over bitcoin, then things may change.