Significant changes in this 2019 update:
1. 4-lane Thunderbolt 3
2. MX250
3. Uses the Sharkfin 2.0 cooling found in the recent Matebook13 (cools faster? Less noisy? dunno, gotta wait for teardown to see how efficient they implemented it)
4. i7, 16Gb model is $1,999 pounds sia
5. Enhanced Huawei Share (if you are fully into Huawei's ecosystem, this will be a +)
6. 3-fingers Gesture screen capture (not sure whether the software update will be enjoyed by older models)
7. They removed the "CNBC logo" from the back, and used a slightly more stylish Huawei text logo
For current 2018 X Pro owners, seems like no reason to upgrade. For aspiring X Pro owners, this is much more expensive then the last year model, which is selling at Amazon for US$1.3k