Complex sentence: The proposal did not appear to proceed any further, with no evidence of an application having been lodged with the Office of Rail Regulation until in 2014, the Renaissance Trains website was update to say that the project had been revived.
Split into simpler sentences: The proposal did not appear to have not proceeded, with no evidence of an application having been lodged with the Office of Rail Regulation. In 2014, the Renaissance Trains website was update to say that the project had been revived.