The docs are now at docs.bitshares.eu/migration

Alle orders (except open shorts) will be closed/not migrated

is there a definitive reply to the questions asked here? 

QuoteBefore the oct 13 date, do I need to remove all my orders from the internal decentralized exchange?  Like buy and sell orders for Brownies, Notes, etc?

What about bitassets?

Your link provided, is dead, xeroc, so not of much use to answer the questions...

Neak peak: (ignore the design)
http://tmp.xeroc.org/.bts/docs/migration/blockchain-transition.html

Before the oct 13 date, do I need to remove all my orders from the internal decentralized exchange?  Like buy and sell orders for Brownies, Notes, etc?

What about bitassets?

Thanks!