More defense contractor puffery, but it appears that some countries have expressed a significant interest in the Silent Eagel low observability program, most notably South Korea.
Of interest is the fact that Boeing has some real concerns about the US Government export license process being used to sabotage their sales process:
As for the F-15SE versus F-35 on frontal stealth, Jones says what Boeing is looking for is an assurance from the U.S. government that all competitors will be set at the same level of RCS reduction. Let the battle begin.
The translation here is that they are concerned that the JSF will be allowed for export at levels of stealth that the F-15SE would not be, because the USAF has no interest in the program, and doesn’t want it competing with the F-35.