With the RSI Reverse Engineering indicator, you are able to calculate the price of the next candle on a certain value of the RSI. E.g. what price is needed for the RSI to be at 70 on the next candle.

REM Reverse Engineering RSI, original by Giorgos Siligardos
REM Build for ProRealTime, used RSI with WilderAverage

REM Parameters
RSIRevValue = 70
RSIPeriod = 14

REM Original RSI values
RSIOri = RSI[RSIPeriod](close)
UPOri = MAX(0, close - close[1]) //higher close then previous
DOWNOri = MAX(0, close[1] - close) //lower close then previous
upMAOri = wilderAverage[RSIPeriod](UPOri)
downMAOri = wilderAverage[RSIPeriod](DOWNOri)


REM Reversed Engineered RSI Value to Price
RSRev = (100/((-1*RSIRevValue)+100))-1

if RSIRevValue < RSIOri THEN
 upMARev = upMAOri*(1-(1/RSIPeriod))
 downMARev = upMARev/RSRev
 DOWNRev = (downMARev - (downMAOri * (1-(1/RSIPeriod))))/(1/RSIPeriod)
 RSIPriceRev = close - DOWNRev
elsif RSIRevValue > RSIOri THEN
 downMARev = downMAOri*(1-(1/RSIPeriod))
 upMARev = downMARev*RSRev
 UPRev = (upMARev - (upMAOri * (1-(1/RSIPeriod))))/(1/RSIPeriod)
 RSIPriceRev = close + UPRev
endif

RETURN RSIPriceRev as "RSIPriceRev"