If you could reinvent religion what would it look like?

Suppose you could take a year off to meditate on how religion could be re-imagined in such away that it avoids the mistakes of the past. It would have to have an up to date cosmology, which gives meaning and purpose to existence, and a sense of moral connectedness to one’s fellow living beings. What would this religion look like and how would you introduce it?

Would this religion serve to promote social justice, compassion, family, etc.? Would there be ritual and articles of faith?

If you are hostile to the whole idea of religion, organized or otherwise, what would you put in place of religion that fulfills the same needs for community, continuity and meaning?