Have you been undecided about which pair of wireless noise-cancelling headphones to buy this Christmas? While the Bose Noise Cancelling Headphones 700 and the Sony WH-1000XM3 are currently some of the most options on the market, it appears that Sony has another top-tier pair of WH-1000XM headphones in the works. The WH-1000XM4 are expected to arrive at CES 2020, although we would not rule out a June 2020 release date yet, either.
https://www.notebookcheck.net/Sony-WH-1000XM4-Mediatek-based-and-a-June-2020-release-for-Sony-s-next-wireless-noise-cancelling-headphones.447968.0.html
No aptx -> no buy.
AptX is probably the biggest con in wireless audio. It doesn't sound any better than AAC but manufacturers have got to pay Quallcom tax. Just stick to AAC and LDAC and they'll cover all operating systems - AAC for iOS and MacOS, LDAC for Android. Linux can do both.