I am so excited because Ledger Nano S will be the only hardware wallet to support many altcoins. I really hope these coins get support: IOTA, ADA, ETN, SIA, new TRX and new TAU (once they are not erc20 anymore).
IOTA, Cardano are going to be added to the ledger nano s soon. You can check
their roadmap.
They are updating their roadmap quite frequently. A lot of additional altcoin are going to be supported soon.
Which alts do you want to see on Ledger Nano S?
I think ledger already supports the most common altcoins.
I am definetely looking forward to monero support. It has been planned for quite some time now.