DERO-Atlantis few features:

    Block time of ~3 seconds.
    ~500 TPS(Transactions Per Second).
    No orphan blocks.
    Faster settlements and confirmation times of less than 60 seconds. Change spending will be allowed after ~60 seconds.
    Optional Extremely light weight, mobile and offline wallets.
    New Dero address specifications to allocate wallets to everyone. Wallets will be lightweight, private, secure, with support of shadow addresses(infinite). Family-members, Cars, IOTs etc. can have shadow addresses. Shadow addresses are linked to primary wallet and can be used independently just like primary wallet. Example: Refrigerator can have shadow address for independent transactions and records.
    Primary address can view/control shadow address balances etc. but not vice-versa.
    Native blockchain without any lightning networks, validators or off-blockchain solutions.

DERO-DAG(Directed Acyclic Graph): DERO Atlantis will be DERO-DAG based. DERO-DAG is mineable, POW based, fully linear with same level of security as blockchain.
No orphans, scalability limits defined by resources(Compute, Network, Storage etc.)

Client Protocol: It handles same transactions mined by two different miners in different blocks mostly due to luck/Network lag.

Bulletproofs: Smaller transaction sizes for CryptoNote Protocol.

Ultra Compact Blocks: Faster block propagation times and low network usage.

Core progress on track.
Explorer, wallets too are being re-written to handle Atlantis.

In another 15 days Atlantis will be released for alpha-tests and Hopefully before next monthly update we would be on Atlantis.