Let's me summarize for you.
1. Scrypt-N ASIC, We have looking for another algorithm already. We have planed to implement it in GPU and CPU miner after we released Stealth Addresses.
2. Multiple PoW, In order to change to the new algorithm, it must be smooth transition as much as possible. We have planed to implement multiple PoW from Scrypt-N to the new algorithm. According to the plan, it will be Scrypt-N -> New Agorithm + Scrypt-N -> New Algorithm.
3. Multipool & Inflation, We still discussing the solutions with team members to find the best way to solve it, but it will do nothing until we released Stealth Address.
4. Stealth Address, It is in progressing.
Thanks,
bushido