Finally VP Jha has issued a somewhat apology/clarification. Lets hope that the protests will abate now, at least for communal harmony. I believe that the protests for that matter owed much more to the Pahadi pride than to anything else (like constitutional requirement etc). But I think its the Madhesi population that should be worried because of the increasing use of Hindi.
Firstly there will be some regulation in the constitution about official languages etc and everybody will abide by that. So we wont have to speak hindi.
Secondly, the madhesi population is going to get an autonomous state and these leaders are sure to use Hindi as their formal language and they will have the right to use whatever they decide. This means a complete wiping of Maithali, Bhojpuri etc.
Talking about wiping of these regional languages, let me put forward some statistics. In India there are about 130/140 native Bhojpuri speakers, which is not yet a national language. Similarly there are about 45 million native Maithali speakers and maithali was made a national language in 2004 ie after Nepali was made a national language and the number of Nepali speakers in India is far less than these languages. India considers Maithali and Bhojpuri dialects of Hindi which is a clear indication that India is trying to wipe these languages out.
And our Madhesi leaders are surely following Indian actions (who knows orders too) and 20 years down the line there will be not bhojpuri or maithali in Madhesh, only Hindi. If that is good for them let it be.