Are Boeing AEW&C customers looking for alternatives?

It seems South Korea is not entirely happy with their AEW&C from Boeing:
https://www.thedrive.com/the-war-zone/3 ... dar-planes
Interestingly Australia seems to start thinking about Wedgetail replacement already.
While many reports on the new AEW&C requirement have suggested that Seoul will simply order two more E-737s, there have been a number of domestic reports detailing disappointment with the Boeing aircraft. In October 2019, the South Korean daily newspaper MunhwaIlbo reported on a South Korean Air Force document that had been submitted to the Korean parliamentary National Defense Committee. It cited “frequent failures” in the period from 2015 to September 2019 that meant the E-737s had failed to meet a targeted availability rate of 75%. This lack of airframes reportedly exposed gaps in South Korea’s air defense coverage network due to aircraft being unavailable to maintain constant patrols. This is of particular concern because the E-737 is considered to be one of South Korea’s primary indigenous means of monitoring North Korean missile activity. The aircraft is also key for detecting low-flying targets and those will small radar signatures, which are a big threat to South Korea.
https://www.thedrive.com/the-war-zone/3 ... dar-planes
Interestingly Australia seems to start thinking about Wedgetail replacement already.