If that is what you mean by
Development will speed up, because another developer was hired recently (https://bitcointalksearch.org/topic/m.12608701).
Regarding dividends it's quite simple. Using BCE (Blocks & Chains Exchange) will require BlockCredits (BKC). Those are being created (by BCE) and sold (to customers).
Revenue from selling BKC (if not already BTC) will be exchanged to BTC and distributed to BlockShares (BKS) holders.
That's it - more or less.
The frequency and amount of dividends depends on the trade that is done on BCE.
Anything from total failure (no dividends, investment lost) to a decentralized exchange going viral and becoming _the_ exchange of crypto tokens (with vast amounts of dividends and skyrocketing BKS rate) seems to be possible.