I doubt it. The kitty assistants were the first time another version of banker and merchant were released and it may be a one time deal, at least for now. There are currently no datamines regarding any new assistants.
"I bear the cruel weight of certainty. Total, absolute, relentless certainty. People rarely comprehend the luxury of doubt... the freedom that comes with indecision. I envy you."
―Sotha Sil