Wow, what a question! What would a pagan eschatology look like? For one thing, of course, if you ask three Pagans you’ll get five answers, a standard situation in religious communities with questions of this type. For another, I would expect it to depend on the particular type of Pagan you ask; some, drawing on ancient Egyptian material, for example, will have very clear ideas, while others will have very little if any idea. Reincarnation is a common idea – in 2003, Berger, Leach and Shaffer published a census of Pagans in the USA, and their data suggests that 75% of Pagans believe in reincarnation and only 4% reject it, with the others unsure or not answering the question (p47; you can consult this source on Google Books).
As I said in my previous post about eschatology, I’m a bit wary of the concept as a whole. There’s a kind of materialist re-phrasing of reincarnation, in which it’s the idea that the molecules which make up your body will continue and make up other things, living and not living, in the future. This is evidently true, and indeed is true during life as well as in death. However, I don’t think that this is the claim which most are making when they refer to reincarnation. The word is usually used in a stronger way, with an implication of the continued existence of the mind, soul, or consciousness – and here is the tangle, because this implies that such a thing exists separately from the body itself (a position we might call ‘dualist’ in some contexts). This seems to me to be very unlikely, and I do not accept it as the explanation for alleged cases of past life regression.
An alternative Pagan eschatology might focus on framing death as a melding back into the Earth or the Divine – for many Pagans, these will be the same thing. As in the interpretation of reincarnation given earlier, the attention is on the building blocks of the body entering the natural cycles of the universe and being re-used in new forms; at the level of metaphor, this is expressed as becoming one with the world after a temporary – illusory – separation. In the words of Z Budapest’s chant, “We all come from the Goddess and to her we shall return.”