No one can answer this question because it depends on how many people who are about to retire know and admire Bitcoin and the technology to consider getting their pension in Bitcoin and are okay with the outcomes of that whether it will be positive or negative since Bitcoin is a volatile asset and it can go up and down any time and that can be both good and bad for those people.

It can have both pros and cons in the long term. People who are getting their pension in Bitcoin will need to make sure that when they are getting it, the market is in the right position for it, getting paid in Bitcoin during the bull run and then seeing your payment losing value as the market goes towards the bear run can be a bad experience, for sure.