Hi Anmol,
thanks for proposing a GSoC idea. When it comes to deep learning in EEG research there is already a mne-associated package for that, braindecode, so if you are interested in this area it might be worth considering focusing your efforts there. @agramfort might be able to tell you more. Another nice contribution could be to translate the ICLabel network from matlab to python (see this post for links to the repo and paper and more context).
But, just as @drammock notes, it is always a good idea to start getting familiar with open source contributions by fixing a few smaller issues in mne. 
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