Lisk currently seems to by in huge hype before conference, there is also a lot of fuel poured into this fire by Lisk being listed in major exchanges like BitFlyer, however, what conference will bring is unknown. I can guess that even it goes well, there might be major selloff. We'll see if history repeats.
Cons:
-Let's also not forget, that this conference date is result of more than few unkept promises about release dates. core 1.0 was meant to be already on mainnet 6 months ago initially, last eta was December 2017. It's still not even on test net.
-code for sdk tools, still appears to be far away.
-LiskHQ is doing very corporate development, but that might turn out to be advantage(like Ubuntu(higher adoption by other corporate entities) vs Debian), but for sure it has lots of cons.
Pros:
-Team is growing
-Seems that 1.0 might turn out to be very decent release (by looking at their changes in code)
-Seems that team has learned on their mistakes from past
-Lisk 1.0 core will feature additional field in transactions, enabling dapp development.
Unknown:
-Result of rebranding
-Possible partnerships (?)
-State of sdk development (unpublished code ?)
However, reality is that, right now Lisk is very simple payment network and nothing beyond that, that's why it may go back to 160-250k satoshi range, during and after conference, until developers will be able to create on Lisk.