Just posted new key and signed with the old one. The Curve25519 isn't yet part of OpenPGP standard but it has been already implemented in GnuPG and it's the only safe ECC key option in GnuPG so I chose it. For encryption the old 4096 ElGamal key is good for sure, but the old 1024 bit DSA key is weak. That's why I generated new keys. The old keys are still valid and haven't been revoked.My new OpenPGP / PGP / GnuPG / GPG key.
pub ed25519/02B8D42A 2016-09-05 [SCA] [expires: 2036-08-31]
Key fingerprint = A4F5 3032 18AA 5665 76B6 90AE FCD4 D06B 02B8 D42A