>>705973
>I'm trying to figure out if there are any churches that are generally traditional and socially conservative but which wouldn't view discussing the topic of the POSSIBILITY of universal reconciliation as heretical.
Well, here's the problem with that. You've probably heard that you should strive for perfection, the path is narrow and all that. Let's say you have a denomination, right? And you consider that interpretation to be most correct. If you leave that line, then that's by definition, you are straying from the path. And that puts yourself in spiritual jeopardy. There's a very structural reason Prot, Caths and Orthos beat on each other day in and out here: they are trying to save souls and admonish those who are putting those efforts at risk. And that is noble and correct for them to do.
Here's a thought exercise: say, a unification of Lutherans and Catholics occurred. They do not agree on many things; Sola Scriptura, papal infallibility, in some lines women as priests (I'm looking at you Evangelicals). Many, many things. All of which we would expect in a secular institution something that would be resolved through mediation, negotiation. Now…think about this. If you advocate for a particular interpretation of the core beliefs, you must by necessity hold those beliefs as being most correct for keeping people on the path to salvation. If you negotiate those points to reach concession with someone else, this is a tacit admission that you either do not really consider your dogmas that important in quest for perfection; in which case, why did you split in the first place…or worse still, you were wrong in some way about that path to salvation. Which means, you put people in Hell, because you were wrong. That's a pretty big problem; one where you can't easily have a situation where people can claim they are both right.
There are also worldly political concerns. Everybody wants to rule the world, and this is true of some ministers, some bishops, and the odd patriarch here and there. By adjusting a structure, even if you are lukewarm who doesn't believe in God but still wear the cloth, any structure that changes the status que can threaten your position. Not to mention the laity's concerns on the matter, who might not react well to these kinds of things. All of these factors add additional sabotage to any realistic hope of what you would like to see in a natural method.
So, no, OP. You should simply choose the denomination that you discern as having correct dogma, and leave it at that. Pray for the return of a unified church if you wish, but don't go looking for it as an official policy anywhere that is still an operational faith. If you want that whole church, make a time machine that will take you before the 11th century, or one that takes you the reign of Antichrist (presumably those few Christians left during the end of that evil time will be as one, or close to it). You won't find what you are looking for in this day and age, and you shouldn't hold out hope for it.