The UNSC needs to be amended/reform, Times have changed a lot since the P5 countries emerged victorious. Britain and France especially are no longer colonial/world powers like they used to be in the past, so i think they should support the inclusion of others countries in the group. But to be honest, i don't think this will ever happen any time soon. All the P5 countries might give verbal support to some countries, but they will never allow it to actually materialize because this will dilute their influence and say in the world. As someone else mentioned here, No one wants to create more equal powers and reduce its own influence. That is unfortunately how Geo politics works. So i think India, Brazil, Germany and especially Japan(China will never ever ever allow them to join) should forget about this issue and focus on other more pressing needs, because the UNSC reform will not happen anytime soon. The P5 have too much to loose if it happens.
As for India, i don't even understand why they are so keen to join, since they were voted as a non permanent member in 2011, but in worlds pressing issues/hot spots, they always abstain. So whats the difference of not been a member then if you can take a stand on major world issues/always try to be so called 'neutral'? India thinks it can keep playing the west and east together, But it should know that our governments in the west are not fools, they do take note and notice every action India takes on critical issues against the west. You cant expect to be an ally to Russia and side with them on core issues affecting the west and expect to be allies with the west as well. It comes a time when you have to choose sides. else in times when you may need help, no one will come to your aid/support, because you have been trying to play all sides and have caused suspicion/caution among those you are playing with. In geo politics, You cant eat your cake and have it. Will be interesting to see India's standing relation to the U.S , CHINA AND RUSSIA in the coming decade.
Personally i would like to see Germany in, They have largely atone for their past sins, are a responsible power, large and stable country with a big economy and positive world influence. However Europe already has 2 members, so its unlikely Germany will ever be included.