There's no certainty that the new Gryffindor Keeper is a first year, though Gregory's kind of hoping its not a first year cause that would be lame. But I would suggest Oliver Wood's youngest daughter, because, well, a girl Keeper is a huge insult to Gregory and Nicholas would want to see that. How about [i]Sarah Wood[/i] for a name?

Edit: And there should also be a Potter on Gryffindor's team. A Seeker perhaps? Then obviously a Malfoy on Slytherin. Suggestions suggestions.