I'm waiting for a PayPal option, 'cause I'm not sure who is holding my credit card information with Kickstarter.

I don't think it'll be this much. Just compare the data:

Shadowrun Returns
Shadowrun: Hong Kong

As you can see, the pledges for HK on the first 2 days are a little lower than for SR. So currently you can expect the campaign to end a little lower than SR, my guess is about $1 M to $1.5 M, of course with the assumption that the HK campaign runs similar.
Don't get fooled by the trending toward amount of $4.2 M for the HK campaign. This isn't a good prediction in this early state of the campaign.