For reusing reapplications, the following is written on the applications page:

Reusing your own applications from other games is allowed. We only ask any written samples to conform to our game. That is, we don't want to read samples that are set specifically for another game's premise. Note: this does not apply to threads linked from other games used as samples.

So it's totally fine to re-use applications! Just make sure that if you write the sample rather than link threads, the sample is written for Empatheias' premise, not another game's.