I'm not sure how old he will be but by my reckoning he will be a child Jean had shortly after Stacey was born but she rejected at birth due to her illness and he ended up being adopted.

I did hear Gillian Wright would be back next year.

Like this theory.

Kyle is not ill.

I never said he was.....

Its the only one that really fits.

Ah, OK, I misunderstood. My money is still on Brian being Kyles father..... I think he either cheated or had a whole other family.

This would be a good theory.

Good theory. Does anyone else think the secret relatives are getting out of hand though?

I think its either this theory which would provide another full sibling for Stacey or Kyle is Brian's son from another marriage or affair making him Stacey's half brother.

OP was referring to Jean's Bipolar I think