A lot can be read from RSI. Even trend. When trend is strong, RSI keeps beyond overbought/oversold areas or at least near them. Sometimes reaching lower for a dip. But when the trend gets exhausted, RSI moves significantly to the other side.
Is there any indicator using this logic to show direction of the trend?
Stochastic for example (this small thread)
MetaTrader Trading Platform Screenshots
EURUSD, M5, 2013.06.03
MetaQuotes Software Corp., MetaTrader 5, Demo
As to RSI-based indicators so you can use search function for - this link, for example -