Additional work will likely be done for the OOB, however, afaik it is currently not planned to have a tier selection.
There are currently no plans to add the hungarian language. I think the focus going forward will be on polishing the released languages (after the german release). Every language presents unique challenges due to our dynamic texts, which require us to essentially recreate at least parts of their grammar systems within the code.
@beybi123 probably knows german better than me now
This may or may not happen, but if the economy adjustments discussed in the OP turn out to be sufficient, we will likely explore this more.
I can bring up the suggestion, but can't say anything beyond that.
That is what the relevant changes discussed in the OP are aiming for.