user14202: Are there any annotations on the obscure Mighty Thor Gambit?
[FEN ""]
1.e4 e6 2.a3 d5 3.e5 c5 4.b4 

(which is different from The Wing Gambit:)
[FEN ""]
1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4

At a tournament where it was played numerous players referred to it as "The Mighty Thor Gambit" but I've not seen that mentioned anywhere online.

user14079: I am not aware of any published analysis nor commented games in this line.
Note that Black can almost forcefully transpose into a 'regular' wing gambit with 4...Nc6 5.Nf3 [5.f4, 5.bc5, and 5.Bb2 cb4 all look worse] cb4. 
In case he is looking for more original play, 4...d4, 4/5...Qb6, 4/5...Qc7 all look interesting and try to demonstrate that a3 might not be the most useful move for White when Black refrains from taking on b4. 

14202: <p>Are there any annotations on the obscure Mighty Thor Gambit?</p>

<pre><code>[FEN ""]
1.e4 e6 2.a3 d5 3.e5 c5 4.b4 
</code></pre>

<p>(which is different from The Wing Gambit:)</p>

<pre><code>[FEN ""]
1.e4 e6 2.Nf3 d5 3.e5 c5 4.b4
</code></pre>

<p>At a tournament where it was played numerous players referred to it as "The Mighty Thor Gambit" but I've not seen that mentioned anywhere online.</p>
 14079: <p>I am not aware of any published analysis nor commented games in this line.</p>

<p>Note that Black can almost forcefully transpose into a 'regular' wing gambit with 4...Nc6 5.Nf3 [5.f4, 5.bc5, and 5.Bb2 cb4 all look worse] cb4. </p>

<p>In case he is looking for more original play, 4...d4, 4/5...Qb6, 4/5...Qc7 all look interesting and try to demonstrate that a3 might not be the most useful move for White when Black refrains from taking on b4. </p>
