It's a strange one haha, my car seemed to fix itself. What I thought was a warped disc seemed to smooth out over a week or two and with that smoothing out, the brake pedal seemed to come back. So God knows what the problem was.
Now that it's mostly fixed I think that bleeding the system definitely couldn't do it any harm, as there is still a bit of travel / sponginess, but for now I can live with it and am quite happy with the upgrade.
Cheers for all the help