I think what eagleeye wants to know is, how long it would take by guesstimation before a blockchain.info type (mobile)wallets can become operational for bitsharesx.
The whole development of the framework needed for lightweight clients, needs to be done first. One of the things that to a non-coder like me, seems to be more favorable for bitshares compared to bitcoin. Is that dpos has the reputation system to find trusted sources in the form of delegate-voting and the delegates themselves and the presumeable nicer codebase to work with, seeing as it was purpose built to be a toolkit for others to use.
So speculating on how dpos will end up working, one of the current delegates or several of them will have to become the bitshares equivalent of blockchain.info and do the coding themselves. Of course if webwallets were part of the bitshares-toolkit design from the start, the essential parts for building them might be a lot closer to being finished and that would shorten the required time for mobile/light client webwallets considerably.
And the 8 - 12 months number, seems to be the average for projects on bitcoin from inception to actual working implementations for bitcoin-core devs. But even then something like multi-sig for example, arguably one of bitcoins most needed features, is still not supported by blockchain.info, despite being conceived as part of bitcoins design many years ago.