Theoretically maybe. but Silent Eagle... is as dead a Thanksgiving Turkey. No one bought in. It seemed like a cool idea but with no one willing to lay out the $$ it went bust. Parts of it still exist as options and will feed into F15SA, F15QA and upgrades for the existing Eagles in the form of the F-15 Advanced Eagle, but Every one who looked at F15SE and F35 all chose F35, Or a more conventional F15 upgrade.
Japan and South Korea two countries who would seemingly argue what color the sky is both made the same choice and asked for F35As.
The Japanese Existing F15 fleet is based on the F15J and F-15J Kai they will likely be kept in service for sometime with system updates like what Boeing has offered the USAF in the F15 2040C concept, IRST, data link compatible with fifth gens, increased missile load, conformal fuel tanks upgraded radar improved self defence systems. For both the JASDF and USAF hope to be phasing the types out about the same time period in the 2040's.
Not if the President pardons it, if you get what I meant. Trump is pretty tight with Boeing right now and kept on hawking more Superhornets to the navy.