If you’re generating one of these shiny new RSA keys, do please remember to generate an encryption subkey too if you expect people to sign it - at least your more obscure UIDs. I’m not going to mail unencrypted signatures around unless I have some out-of-band knowledge that the e-mail address actually belongs to the person I met.
I generated a new 4096-bit RSA key myself at DebConf (baa!), and have just published a key transition document. Please consider signing my new key if you signed my old one.