Price of wings by the end of the year might be a reasonable $1/token. By the time it will support rootstock, that figure might tripled its value.
What is rootstock?
Rootstock is a smart contract platform on Bitcoin network. Just like Ethereum on Bitcoin network but with better network support. I don,t know why their ICO is being delayed
Wings is establishing partnerships with promising projects and attending all important events blockchain related to raise awareness for this platform. I also think soon Wings will fly with these strategic partnerships and in long term it will be the best investment.
RSK will lunch at May , 22 ,

I am happy to hear this news, hopefully become a reality

i am not buying it. where did you read that?
https://twitter.com/RSKsmart/status/863418813097881600Didnt see that. But i dont think wings devs will experiment with it until full release
Right now the plan is to deploy a beta version on the Ethereum network, where the token sits. Regarding RSK, perhaps something like Cosmos or Polkadot, which will link blockchains will make it easy to support cross chain transactions.