The migration from Neo to Binance Chain will be a full migration. This means that AVA (Nep5) will be completely replaced by AVA (Bep2) on a 1:1 ratio.
Travala.com
Sending AVA (Nep5) Tokens to the Travala.com platform will be automatically swapped for the new AVA (BEP2) on a 1:1 ratio. You can do this by depositing AVA (Nep5) to your NEO address on the Travala platform.