Anything left in space will likely be destroyed or stolen. Anything in stations (ships, parts, materials, etc) and your cash will still be where you left them.

Anything left in space will likely be destroyed or stolen. Anything in stations (ships, parts, materials, etc) and your cash will still be where you left them. If that's a player-owned station that changed hands while you were out, or you get kicked from corp for inactivity, you won't be able to dock to get at them, but you can try to firesale them (post a contract offer to sell the lot cheap), and likely someone with access to the station will buy. Often people who are leaving will either have their assets moved somewhere they'll certainly have access to later or just liquidate (generally on better than firesale terms). Citadels (like the keepstar that changed hands) work differently: you can get everything in a citadel moved to the nearest suitable npc station at the cost of 15% of its value and a 20-day wait, worst case (google "eve asset safety" for the full details).