The new PlayStation Plus tiers have been rolled out in Asia and Japan and theyll be rolling out across the Americas in just a few days time. Many members who had stacked their subscriptions for years to come were looking at fairly large upgrade fees if they wanted to change to PS Plus Extra or Premium, but it seems like Sony has now capped the charges so this is no longer the case.
An employee at the official Sony Japan support center did tell a customer that the upgrade fee for PS Plus Premium had been capped at ¥12,750 although this was yet to be reflected on the PlayStation official website. Sony is yet to make an official statement on this change.
source: gamezpot.com