Not so far as I know. NALC lobbied for a delay to April 2016. From what they say it appears that they did not get what they asked for so the April 2015 date still stands, but instead obtained access to a fund to assist councils in meeting the requirements.
According to NALC "From 1 April 2017 the publication of the Transparency Code requirements for smaller authorities will entirely replace external audit, therefore compliance with the Transparency Code is taken very serious by Ministers. Failure to comply with the Code may result in judicial proceedings, which by nature are likely to be costly and lengthy". That could be read as implying that there isn't too much concern about failures to comply prior to April 2017.
Despite what they say, I find it hard to imagine a government department, strapped for cash, embarking on judicial proceedings against large numbers of small councils with extremely damaging implications for a disproportionate precept and hence council tax charge. The reality seems to be that small councils are having difficulty meeting the requirements and possibly do not all understand them. Presumably everyone will eventually muddle through and perhaps most councils will in time publish the required information. There may be some sabre rattling from government.