Wonder X Man

Twice as fast? How sure are you about it? That would be quite an improvement. But I don't see anything like that offered in the Sony sensor range

Nokishita is an excellent source, but sadly only for short term rumors. Fujirumors leaked 80% of the X-T4 specs before nokishita for example, and is better in long term rumors. Nokishita gets the specs only once the press release is send to press and stores

wow... more X-T3 firmware 4.00 details leaked

But rumor has it it won't shoot 6K at all. I saw this sensor data sheet on weibo, too.

There is no 6K at all: https://www.fujirumors.com/fujifilm-x-t4-will-not-shoot-6k-video/

it's a courtesy to link https://www.fujirumors.com/exclusive-fujifilm-x-t4-annoucement-on-february-26/

When will that happen?

Any idea which cameras could be updated and which features it could bring?