https://collider.com/stranger-things-stage-play-details/
According to casting calls, the leads are two 14 year olds. The girl [currently named Betty] is supposedly a "good-two-shoes" type who's the daughter of a priest and the lead boy [currently named George] is described as "pale and moody". The girl then begins to fall for this boy and she is surprised because he is the school "outcast".
And yes, it sounds slightly like Eddie and Chrissy-- which I find rather interesting. Though, we shouldn't be too quick to judge. Afterall, we've only heard this small part of the story. We have no idea what the actual stranger things connected story will be.
Furthermore, the article only says that they're looking for BIPOC actors and actors who can sing for Betty. Not all that much revealed. The casting breakdowns are not public as far as I am aware so we only have what the article has revealed.
This article has been widely under the radar among various forums I'm active on. Just thought you guys would want to know in case you haven't seen this yet.