Today I've started working on code changes to account for the server merge. I am currently scanning for new characters and linkshells and adding them to the database. Lodestone achievements should be added but I haven't looked at it in detail yet.
Old Characters (Characters on inactive servers)
They are linked to comments, screenshots, and private messages and for that reason they will remain in the database. Achievements, linkshells, and level data associated with the characters will be purged.
Achievements
Since SE has points for achievements, I will keep a tally of the official count for each char. I may create a separate leaderboard that would reflect a point tally similar to how it's done currently to give more weight to achievements.
Verifying Chars
You will need to re-verify your character(s) even if your name did not change. Sorry I cannot assume you are the same owner just because the name didn't change. This may not be true since the lodestone id seemed to be persist with the original characters.
Linkshells
I am going to see if I can import some of the metadata to linkshells whose names did not change. It's unlikely your linkshell inherits invalid metadata, even if it does it can be changed by a leader.
Item data and other stuff
I noticed some internal structuring of FFXIV data has likely been rearranged. If you notice something wrong you can report it in the Bugs forum.
What the hell took so long?
Sorry, I've been overwhelmed with work and family life. I cut back on some of my responsibilities. I will try to get things back on track!