I woudn't get too excited
Whether or not this Chinese fighter will be a competitor to our F-22 is an open question. So far the Chinese have not demonstrated the cutting edge engine technology needed for supercruise. In our own stealth development, it was found that relatively minor flaws in design, operation, or materials could make a plane light up a radar screen. Getting all this right is a lot harder than it looks. There are also intangibles such as how maintenance intensive the Chinese plane is, and what kind of electronic warfare systems it has to support multiple engagements at the same time.
On top of that, the US has the budget to build and maintain only about 187 F-22s. It's hard to imagine the Chinese building a greater number of their stealth superfighters.
If a real full-blown war were to break out between the US and China that didn't go nuclear, it's hard to imagine either the F-22 or the new Chinese stealth fighter having much effect. They'd be like the German Tiger II tank of WWII (less than 500 hundred built), which nobody fought head-on but were overwhelmed by opposing numbers.
