When in 1970 Brazil wins Jules Rimet Trophy for the third time, then for the next world cup in 1974 the trophy is new - so called FIFA World Cup Trophy. Since then Germany has won the cup 3 times, the last in 2014. Should we expect a new World Cup trophy or this is just a rumour?
This is untrue. Quoting from FIFA's page about the trophy:
The original FIFA World Cup Trophy cannot be won outright anymore, as the new regulations state that it shall remain in FIFA's possession.