ath11k is being merged for kernel v5.6 (it's already part of net-next for v5.6), so you can expect that to arrive in due time (OpenWrt uses backports for wireless, so it doesn't depend on kernel v5.6 to run on the host, but will get it earlier). However the ath11k supported WLAN cards (QCN5024, QCN5054, QCN5124, QCN5154) are so far only found on devices with an IPQ807x SOC, which are generally speaking quite far at the upper end of the price spectrum, limiting availability to potential developers. IPQ807x SOC support has been part of the kernel for around two years by now, but it's not quite complete (block storage, cpufreq, wired networking are traditionally the weak points). Chances aren't too bad for these IPQ807x based devices to gain OpenWrt support in the future (measured in months+, not weeks).
Broadcom BCM43684 is not very likely to gain support, ever.
Marvell/ NXP has been derailed quite a bit by Marvell selling their wireless chipset department to NXP. It probably will take some time until anything happens in this regard; news for past 802.11ac Marvell/ NXP chipsets (88W8864, 88W8964, 88W8887) would not instill me with much (any) hope for the future.
Intel (ex-lantiq), PXB4395 (SOC) and WAV654 (wireless) exist, OpenWrt support does not… Traditionally wireless support for previous lantiq chipsets was proprietary, incomplete and effectively not available for OpenWrt, if this will change for WAV654 is unclear (but doubtful). SOC support won't exactly be easy either (2*600 MHz or 2*800 MHz mips 34Kc).
Mediatek has announced MT7915D/ MT7915N, but so far neither devices nor driver development seem to exist for this generation.
Realtek will likely also appear, later, towards the lowest end - unlikely to gain OpenWrt support, unless they land a surprise coup in terms of SOC/ driver support (via mainline, which is doubtful) and can offer performance beyond the bare minimum.