It is a possibility!
Tether wont even be ranked on the top 500 a year from now!
Currency pairs are on the way!
Bitcoin will also suffer from currency pairs because it will become obsolete: Think about it!
Market dynamics will change!
I like this coin it secure our funds when market is falling. I like the idea instead of tether used fiat, but to withdraw in fiat you need something like bank accounts and credit cards whatsoever. Tether made it easier and not all exchanges has fiat and I think Tether is much easier to integrate on exchanges.
But it all depends on bitfinex and Tether this currency is controversial.